155456469 has 24 divisors (see below), whose sum is σ = 267909120. Its totient is φ = 88831512.

The previous prime is 155456453. The next prime is 155456489. The reversal of 155456469 is 964654551.

155456469 is a `hidden beast` number, since 1 + 554 + 56 + 46 + 9 = 666.

It is not a de Polignac number, because 155456469 - 2⁴ = 155456453 is a prime.

It is a super-2 number, since 2×155456469² = 48333427507895922, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155456419) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 57429 + ... + 60074.

It is an arithmetic number, because the mean of its divisors is an integer number (11162880).

Almost surely, 2^155456469 is an apocalyptic number.

It is an amenable number.

155456469 is a deficient number, since it is larger than the sum of its proper divisors (112452651).

155456469 is a wasteful number, since it uses less digits than its factorization.

155456469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117526 (or 117513 counting only the distinct ones).

The product of its digits is 648000, while the sum is 45.

The square root of 155456469 is about 12468.2183570869. The cubic root of 155456469 is about 537.6953322149.

The spelling of 155456469 in words is "one hundred fifty-five million, four hundred fifty-six thousand, four hundred sixty-nine".