154861448 has 16 divisors (see below), whose sum is σ = 331846080. Its totient is φ = 66369168.

The previous prime is 154861433. The next prime is 154861451. The reversal of 154861448 is 844168451.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1382636 + ... + 1382747.

It is an arithmetic number, because the mean of its divisors is an integer number (20740380).

Almost surely, 2^154861448 is an apocalyptic number.

It is an amenable number.

154861448 is an abundant number, since it is smaller than the sum of its proper divisors (176984632).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

154861448 is a wasteful number, since it uses less digits than its factorization.

154861448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2765396 (or 2765392 counting only the distinct ones).

The product of its digits is 122880, while the sum is 41.

The square root of 154861448 is about 12444.3339717319. Note that the first 3 decimals coincide. The cubic root of 154861448 is about 537.0084323505.

The spelling of 154861448 in words is "one hundred fifty-four million, eight hundred sixty-one thousand, four hundred forty-eight".