2145242413125 has 120 divisors (see below), whose sum is σ = 4487607805824. Its totient is φ = 966868560000.

The previous prime is 2145242413121. The next prime is 2145242413133. The reversal of 2145242413125 is 5213142425412.

2145242413125 is a `hidden beast` number, since 2 + 1 + 4 + 524 + 2 + 4 + 1 + 3 + 125 = 666.

It is not a de Polignac number, because 2145242413125 - 2² = 2145242413121 is a prime.

It is a super-2 number, since 2×2145242413125² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2145242413125.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2145242413121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 2411947 + ... + 3179303.

Almost surely, 2^{2145242413125} is an apocalyptic number.

2145242413125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2145242413125 is an abundant number, since it is smaller than the sum of its proper divisors (2342365392699).

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

2145242413125 is an equidigital number, since it uses as much as digits as its factorization.

2145242413125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 767461 (or 767443 counting only the distinct ones).

The product of its digits is 76800, while the sum is 36.

Adding to 2145242413125 its reverse (5213142425412), we get a palindrome (7358384838537).

The spelling of 2145242413125 in words is "two trillion, one hundred forty-five billion, two hundred forty-two million, four hundred thirteen thousand, one hundred twenty-five".