162994923 has 90 divisors (see below), whose sum is σ = 307964844. Its totient is φ = 85975344.

The previous prime is 162994921. The next prime is 162994927. The reversal of 162994923 is 329499261.

It is a happy number.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It is not a de Polignac number, because 162994923 - 2¹ = 162994921 is a prime.

It is not an unprimeable number, because it can be changed into a prime (162994921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 89 ways as a sum of consecutive naturals, for example, 12538065 + ... + 12538077.

Almost surely, 2^162994923 is an apocalyptic number.

162994923 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

162994923 is a deficient number, since it is larger than the sum of its proper divisors (144969921).

162994923 is an frugal number, since it uses more digits than its factorization.

162994923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67 (or 23 counting only the distinct ones).

The product of its digits is 209952, while the sum is 45.

The square root of 162994923 is about 12766.9465025902. The cubic root of 162994923 is about 546.2498856184.

The spelling of 162994923 in words is "one hundred sixty-two million, nine hundred ninety-four thousand, nine hundred twenty-three".