154451136 has 84 divisors (see below), whose sum is σ = 475399608. Its totient is φ = 44126208.

The previous prime is 154451123. The next prime is 154451153. The reversal of 154451136 is 631154451.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (84).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1200 + ... + 17616.

Almost surely, 2^154451136 is an apocalyptic number.

154451136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 154451136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (237699804).

154451136 is an abundant number, since it is smaller than the sum of its proper divisors (320948472).

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

154451136 is a wasteful number, since it uses less digits than its factorization.

154451136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16446 (or 16429 counting only the distinct ones).

The product of its digits is 7200, while the sum is 30.

The square root of 154451136 is about 12427.8371408705. The cubic root of 154451136 is about 536.5337372932.

The spelling of 154451136 in words is "one hundred fifty-four million, four hundred fifty-one thousand, one hundred thirty-six".