154645450 has 12 divisors (see below), whose sum is σ = 287640630. Its totient is φ = 61858160.

The previous prime is 154645441. The next prime is 154645483. The reversal of 154645450 is 54546451.

It can be written as a sum of positive squares in 3 ways, for example, as 118657449 + 35988001 = 10893^2 + 5999^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1546405 + ... + 1546504.

Almost surely, 2^154645450 is an apocalyptic number.

154645450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

154645450 is a deficient number, since it is larger than the sum of its proper divisors (132995180).

154645450 is a wasteful number, since it uses less digits than its factorization.

154645450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3092921 (or 3092916 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 34.

The square root of 154645450 is about 12435.6523753280. The cubic root of 154645450 is about 536.7586462376.

The spelling of 154645450 in words is "one hundred fifty-four million, six hundred forty-five thousand, four hundred fifty".