155414997 has 16 divisors (see below), whose sum is σ = 237672960. Its totient is φ = 100267200.

The previous prime is 155414989. The next prime is 155415017. The reversal of 155414997 is 799414551.

155414997 is a `hidden beast` number, since 1 + 554 + 1 + 4 + 9 + 97 = 666.

155414997 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 155414997 - 2³ = 155414989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155414297) 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, 92004 + ... + 93677.

It is an arithmetic number, because the mean of its divisors is an integer number (14854560).

Almost surely, 2^155414997 is an apocalyptic number.

It is an amenable number.

155414997 is a deficient number, since it is larger than the sum of its proper divisors (82257963).

155414997 is a wasteful number, since it uses less digits than its factorization.

155414997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185721 (or 185715 counting only the distinct ones).

The product of its digits is 226800, while the sum is 45.

The square root of 155414997 is about 12466.5551376473. Note that the first 3 decimals coincide. The cubic root of 155414997 is about 537.6475132891.

The spelling of 155414997 in words is "one hundred fifty-five million, four hundred fourteen thousand, nine hundred ninety-seven".