155454117 has 32 divisors (see below), whose sum is σ = 260332800. Its totient is φ = 81990720.

The previous prime is 155454113. The next prime is 155454139. The reversal of 155454117 is 711454551.

It is not a de Polignac number, because 155454117 - 2² = 155454113 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155454113) 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, 7567 + ... + 19187.

It is an arithmetic number, because the mean of its divisors is an integer number (8135400).

Almost surely, 2^155454117 is an apocalyptic number.

It is an amenable number.

155454117 is a deficient number, since it is larger than the sum of its proper divisors (104878683).

155454117 is a wasteful number, since it uses less digits than its factorization.

155454117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11658 (or 11644 counting only the distinct ones).

The product of its digits is 14000, while the sum is 33.

The square root of 155454117 is about 12468.1240369191. The cubic root of 155454117 is about 537.6926204894.

The spelling of 155454117 in words is "one hundred fifty-five million, four hundred fifty-four thousand, one hundred seventeen".