155105601 has 32 divisors (see below), whose sum is σ = 250229760. Its totient is φ = 83571264.

The previous prime is 155105579. The next prime is 155105623. The reversal of 155105601 is 106501551.

155105601 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (155105579) and next prime (155105623).

It is not a de Polignac number, because 155105601 - 2⁷ = 155105473 is a prime.

It is not an unprimeable number, because it can be changed into a prime (155105651) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23226 + ... + 29148.

It is an arithmetic number, because the mean of its divisors is an integer number (7819680).

Almost surely, 2^155105601 is an apocalyptic number.

It is an amenable number.

155105601 is a deficient number, since it is larger than the sum of its proper divisors (95124159).

155105601 is a wasteful number, since it uses less digits than its factorization.

155105601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6005.

The product of its (nonzero) digits is 750, while the sum is 24.

The square root of 155105601 is about 12454.1399141009. The cubic root of 155105601 is about 537.2904981979.

The spelling of 155105601 in words is "one hundred fifty-five million, one hundred five thousand, six hundred one".