159420457 has 16 divisors (see below), whose sum is σ = 188869120. Its totient is φ = 131709888.

The previous prime is 159420451. The next prime is 159420463. The reversal of 159420457 is 754024951.

It is an interprime number because it is at equal distance from previous prime (159420451) and next prime (159420463).

It is a 4-Lehmer number, since φ(159420457) divides (159420457-1)⁴.

It is a cyclic number.

It is not a de Polignac number, because 159420457 - 2⁷ = 159420329 is a prime.

It is a super-2 number, since 2×159420457² = 50829764220177698, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (159420451) 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, 25408 + ... + 31054.

It is an arithmetic number, because the mean of its divisors is an integer number (11804320).

It is a Poulet number, since it divides 2^159420456-1.

Almost surely, 2^159420457 is an apocalyptic number.

It is an amenable number.

159420457 is a deficient number, since it is larger than the sum of its proper divisors (29448663).

159420457 is a wasteful number, since it uses less digits than its factorization.

159420457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5800.

The product of its (nonzero) digits is 50400, while the sum is 37.

The square root of 159420457 is about 12626.1814100701. The cubic root of 159420457 is about 542.2272629366.

The spelling of 159420457 in words is "one hundred fifty-nine million, four hundred twenty thousand, four hundred fifty-seven".