162400155 has 16 divisors (see below), whose sum is σ = 264245760. Its totient is φ = 85144928.

The previous prime is 162400153. The next prime is 162400177. The reversal of 162400155 is 551004261.

It is a cyclic number.

It is not a de Polignac number, because 162400155 - 2¹ = 162400153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (162400151) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90867 + ... + 92636.

It is an arithmetic number, because the mean of its divisors is an integer number (16515360).

Almost surely, 2^162400155 is an apocalyptic number.

162400155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

162400155 is a deficient number, since it is larger than the sum of its proper divisors (101845605).

162400155 is a wasteful number, since it uses less digits than its factorization.

162400155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183570.

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 162400155 is about 12743.6319391294. The cubic root of 162400155 is about 545.5846544042.

The spelling of 162400155 in words is "one hundred sixty-two million, four hundred thousand, one hundred fifty-five".