1405502012142 has 24 divisors (see below), whose sum is σ = 3045305198520. Its totient is φ = 468492849360.

The previous prime is 1405502012119. The next prime is 1405502012143. The reversal of 1405502012142 is 2412102055041.

It is a happy number.

1405502012142 is a `hidden beast` number, since 1 + 4 + 0 + 5 + 502 + 0 + 12 + 142 = 666.

It is a super-2 number, since 2×1405502012142² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1405502012143) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 512592 + ... + 1753212.

It is an arithmetic number, because the mean of its divisors is an integer number (126887716605).

Almost surely, 2^{1405502012142} is an apocalyptic number.

1405502012142 is an abundant number, since it is smaller than the sum of its proper divisors (1639803186378).

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

1405502012142 is a wasteful number, since it uses less digits than its factorization.

1405502012142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1303568 (or 1303565 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

Adding to 1405502012142 its reverse (2412102055041), we get a palindrome (3817604067183).

The spelling of 1405502012142 in words is "one trillion, four hundred five billion, five hundred two million, twelve thousand, one hundred forty-two".