168417457 has 12 divisors (see below), whose sum is σ = 183272304. Its totient is φ = 154692720.

The previous prime is 168417449. The next prime is 168417461. The reversal of 168417457 is 754714861.

It is not a de Polignac number, because 168417457 - 2³ = 168417449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (168417427) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33298 + ... + 38020.

It is an arithmetic number, because the mean of its divisors is an integer number (15272692).

Almost surely, 2^168417457 is an apocalyptic number.

It is an amenable number.

168417457 is a deficient number, since it is larger than the sum of its proper divisors (14854847).

168417457 is a wasteful number, since it uses less digits than its factorization.

168417457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4960 (or 4947 counting only the distinct ones).

The product of its digits is 188160, while the sum is 43.

The square root of 168417457 is about 12977.5751587113. The cubic root of 168417457 is about 552.2414938314.

The spelling of 168417457 in words is "one hundred sixty-eight million, four hundred seventeen thousand, four hundred fifty-seven".