1601000157 has 16 divisors (see below), whose sum is σ = 2170212800. Its totient is φ = 1049645952.

The previous prime is 1601000153. The next prime is 1601000161. The reversal of 1601000157 is 7510001061.

It is an interprime number because it is at equal distance from previous prime (1601000153) and next prime (1601000161).

It is not a de Polignac number, because 1601000157 - 2² = 1601000153 is a prime.

It is the 40013-rd Hogben number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1601000153) by changing a digit.

It is a nontrivial repunit in base 40012.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65958 + ... + 86904.

It is an arithmetic number, because the mean of its divisors is an integer number (135638300).

Almost surely, 2^1601000157 is an apocalyptic number.

It is an amenable number.

1601000157 is a deficient number, since it is larger than the sum of its proper divisors (569212643).

1601000157 is a wasteful number, since it uses less digits than its factorization.

1601000157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21372.

The product of its (nonzero) digits is 210, while the sum is 21.

The square root of 1601000157 is about 40012.5000093721. The cubic root of 1601000157 is about 1169.8507509234.

The spelling of 1601000157 in words is "one billion, six hundred one million, one hundred fifty-seven", and thus it is an aban number.