155632155 has 16 divisors (see below), whose sum is σ = 284584704. Its totient is φ = 71146080.

The previous prime is 155632151. The next prime is 155632157. The reversal of 155632155 is 551236551.

It is not a de Polignac number, because 155632155 - 2² = 155632151 is a prime.

It is not an unprimeable number, because it can be changed into a prime (155632151) 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, 741001 + ... + 741210.

It is an arithmetic number, because the mean of its divisors is an integer number (17786544).

Almost surely, 2^155632155 is an apocalyptic number.

155632155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

155632155 is a deficient number, since it is larger than the sum of its proper divisors (128952549).

155632155 is a wasteful number, since it uses less digits than its factorization.

155632155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1482226.

The product of its digits is 22500, while the sum is 33.

The square root of 155632155 is about 12475.2617207015. The cubic root of 155632155 is about 537.8978111446.

The spelling of 155632155 in words is "one hundred fifty-five million, six hundred thirty-two thousand, one hundred fifty-five".