1042172901539 has 16 divisors (see below), whose sum is σ = 1299940670976. Its totient is φ = 811702641600.

The previous prime is 1042172901533. The next prime is 1042172901547. The reversal of 1042172901539 is 9351092712401.

1042172901539 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 1042172901539 - 2¹² = 1042172897443 is a prime.

It is a super-2 number, since 2×1042172901539² (a number of 25 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1042172901539.

It is not an unprimeable number, because it can be changed into a prime (1042172901533) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3002207 + ... + 3331304.

It is an arithmetic number, because the mean of its divisors is an integer number (81246291936).

Almost surely, 2^{1042172901539} is an apocalyptic number.

1042172901539 is a deficient number, since it is larger than the sum of its proper divisors (257767769437).

1042172901539 is a wasteful number, since it uses less digits than its factorization.

1042172901539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6335666.

The product of its (nonzero) digits is 136080, while the sum is 44.

The spelling of 1042172901539 in words is "one trillion, forty-two billion, one hundred seventy-two million, nine hundred one thousand, five hundred thirty-nine".