162129402 has 12 divisors (see below), whose sum is σ = 351280410. Its totient is φ = 54043128.

The previous prime is 162129397. The next prime is 162129421. The reversal of 162129402 is 204921261.

It can be written as a sum of positive squares in only one way, i.e., 98783721 + 63345681 = 9939^2 + 7959^2 .

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 4503577 + ... + 4503612.

Almost surely, 2^162129402 is an apocalyptic number.

162129402 is an abundant number, since it is smaller than the sum of its proper divisors (189151008).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

162129402 is a wasteful number, since it uses less digits than its factorization.

162129402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9007197 (or 9007194 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 162129402 is about 12733.0044372882. The cubic root of 162129402 is about 545.2812867748.

The spelling of 162129402 in words is "one hundred sixty-two million, one hundred twenty-nine thousand, four hundred two".