1523521044142 has 16 divisors (see below), whose sum is σ = 2322791501472. Its totient is φ = 749257708320.

The previous prime is 1523521044139. The next prime is 1523521044193. The reversal of 1523521044142 is 2414401253251.

It is a super-2 number, since 2×1523521044142² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1523521044098 and 1523521044107.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8408023 + ... + 8587309.

It is an arithmetic number, because the mean of its divisors is an integer number (145174468842).

Almost surely, 2^{1523521044142} is an apocalyptic number.

1523521044142 is a deficient number, since it is larger than the sum of its proper divisors (799270457330).

1523521044142 is a wasteful number, since it uses less digits than its factorization.

1523521044142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249003.

The product of its (nonzero) digits is 38400, while the sum is 34.

Adding to 1523521044142 its reverse (2414401253251), we get a palindrome (3937922297393).

The spelling of 1523521044142 in words is "one trillion, five hundred twenty-three billion, five hundred twenty-one million, forty-four thousand, one hundred forty-two".