154955385 has 24 divisors (see below), whose sum is σ = 289251144. Its totient is φ = 76285440.

The previous prime is 154955327. The next prime is 154955401. The reversal of 154955385 is 583559451.

154955385 is a `hidden beast` number, since 15 + 4 + 9 + 553 + 85 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 4549689 + 150405696 = 2133^2 + 12264^2 .

It is not a de Polignac number, because 154955385 - 2¹⁹ = 154431097 is a prime.

It is a super-2 number, since 2×154955385² = 48022342680996450, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 154955385.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 131856 + ... + 133025.

It is an arithmetic number, because the mean of its divisors is an integer number (12052131).

Almost surely, 2^154955385 is an apocalyptic number.

154955385 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

154955385 is a deficient number, since it is larger than the sum of its proper divisors (134295759).

154955385 is a wasteful number, since it uses less digits than its factorization.

154955385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264905 (or 264902 counting only the distinct ones).

The product of its digits is 540000, while the sum is 45.

The square root of 154955385 is about 12448.1076875162. The cubic root of 154955385 is about 537.1169912493.

The spelling of 154955385 in words is "one hundred fifty-four million, nine hundred fifty-five thousand, three hundred eighty-five".