162978263 has 12 divisors (see below), whose sum is σ = 189810000. Its totient is φ = 139531392.

The previous prime is 162978241. The next prime is 162978293. The reversal of 162978263 is 362879261.

It is not a de Polignac number, because 162978263 - 2¹² = 162974167 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162978293) 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, 59870 + ... + 62532.

It is an arithmetic number, because the mean of its divisors is an integer number (15817500).

Almost surely, 2^162978263 is an apocalyptic number.

162978263 is a deficient number, since it is larger than the sum of its proper divisors (26831737).

162978263 is a wasteful number, since it uses less digits than its factorization.

162978263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3926 (or 3919 counting only the distinct ones).

The product of its digits is 217728, while the sum is 44.

The square root of 162978263 is about 12766.2940198007. The cubic root of 162978263 is about 546.2312739279.

The spelling of 162978263 in words is "one hundred sixty-two million, nine hundred seventy-eight thousand, two hundred sixty-three".