155101155 has 64 divisors (see below), whose sum is σ = 281304576. Its totient is φ = 72320000.

The previous prime is 155101127. The next prime is 155101171. The reversal of 155101155 is 551101551.

It is not a de Polignac number, because 155101155 - 2¹⁴ = 155084771 is a prime.

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 63 ways as a sum of consecutive naturals, for example, 683152 + ... + 683378.

It is an arithmetic number, because the mean of its divisors is an integer number (4395384).

Almost surely, 2^155101155 is an apocalyptic number.

155101155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

155101155 is a deficient number, since it is larger than the sum of its proper divisors (126203421).

155101155 is a wasteful number, since it uses less digits than its factorization.

155101155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 388.

The product of its (nonzero) digits is 625, while the sum is 24.

The square root of 155101155 is about 12453.9614179585. The cubic root of 155101155 is about 537.2853644560.

The spelling of 155101155 in words is "one hundred fifty-five million, one hundred one thousand, one hundred fifty-five".