155110401 has 12 divisors (see below), whose sum is σ = 230104212. Its totient is φ = 100611936.

The previous prime is 155110399. The next prime is 155110411. The reversal of 155110401 is 104011551.

It is a happy number.

155110401 is a `hidden beast` number, since 155 + 110 + 401 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 62489025 + 92621376 = 7905^2 + 9624^2 .

It is not a de Polignac number, because 155110401 - 2¹ = 155110399 is a prime.

It is not an unprimeable number, because it can be changed into a prime (155110411) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 232566 + ... + 233231.

It is an arithmetic number, because the mean of its divisors is an integer number (19175351).

Almost surely, 2^155110401 is an apocalyptic number.

It is an amenable number.

155110401 is a deficient number, since it is larger than the sum of its proper divisors (74993811).

155110401 is a wasteful number, since it uses less digits than its factorization.

155110401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 465840 (or 465837 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 18.

The square root of 155110401 is about 12454.3326196147. The cubic root of 155110401 is about 537.2960405892.

Adding to 155110401 its reverse (104011551), we get a palindrome (259121952).

The spelling of 155110401 in words is "one hundred fifty-five million, one hundred ten thousand, four hundred one".