258097161 has 48 divisors (see below), whose sum is σ = 412205760. Its totient is φ = 143176320.

The previous prime is 258097123. The next prime is 258097171. The reversal of 258097161 is 161790852.

It is not a de Polignac number, because 258097161 - 2⁶ = 258097097 is a prime.

It is a super-2 number, since 2×258097161² = 133228289032519842, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (258097171) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 959335 + ... + 959603.

It is an arithmetic number, because the mean of its divisors is an integer number (8587620).

Almost surely, 2^258097161 is an apocalyptic number.

258097161 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

258097161 is a deficient number, since it is larger than the sum of its proper divisors (154108599).

258097161 is a wasteful number, since it uses less digits than its factorization.

258097161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 454 (or 447 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 39.

The square root of 258097161 is about 16065.4026093341. The cubic root of 258097161 is about 636.6895802662.

The spelling of 258097161 in words is "two hundred fifty-eight million, ninety-seven thousand, one hundred sixty-one".