1405151242425 has 72 divisors (see below), whose sum is σ = 2884565028800. Its totient is φ = 640514044800.

The previous prime is 1405151242421. The next prime is 1405151242447. The reversal of 1405151242425 is 5242421515041.

1405151242425 is a `hidden beast` number, since 1 + 40 + 5 + 151 + 2 + 42 + 425 = 666.

It is not a de Polignac number, because 1405151242425 - 2² = 1405151242421 is a prime.

It is a super-3 number, since 3×1405151242425³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 1405151242425.

It is not an unprimeable number, because it can be changed into a prime (1405151242421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 728491 + ... + 1827840.

Almost surely, 2^{1405151242425} is an apocalyptic number.

1405151242425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1405151242425 is an abundant number, since it is smaller than the sum of its proper divisors (1479413786375).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1405151242425 is a wasteful number, since it uses less digits than its factorization.

1405151242425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2556703 (or 2556695 counting only the distinct ones).

The product of its (nonzero) digits is 64000, while the sum is 36.

Adding to 1405151242425 its reverse (5242421515041), we get a palindrome (6647572757466).

The spelling of 1405151242425 in words is "one trillion, four hundred five billion, one hundred fifty-one million, two hundred forty-two thousand, four hundred twenty-five".