168964546 has 4 divisors (see below), whose sum is σ = 253446822. Its totient is φ = 84482272.

The previous prime is 168964541. The next prime is 168964589. The reversal of 168964546 is 645469861.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 117483921 + 51480625 = 10839^2 + 7175^2 .

It is a super-2 number, since 2×168964546² = 57098035609972232, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 168964546.

It is not an unprimeable number, because it can be changed into a prime (168964541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42241135 + ... + 42241138.

Almost surely, 2^168964546 is an apocalyptic number.

168964546 is a deficient number, since it is larger than the sum of its proper divisors (84482276).

168964546 is an equidigital number, since it uses as much as digits as its factorization.

168964546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84482275.

The product of its digits is 1244160, while the sum is 49.

The square root of 168964546 is about 12998.6363130907. The cubic root of 168964546 is about 552.8388164978.

The spelling of 168964546 in words is "one hundred sixty-eight million, nine hundred sixty-four thousand, five hundred forty-six".