154491456 has 112 divisors (see below), whose sum is σ = 474024960. Its totient is φ = 43491840.

The previous prime is 154491431. The next prime is 154491503. The reversal of 154491456 is 654194451.

It is a tau number, because it is divible by the number of its divisors (112).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94615 + ... + 96233.

Almost surely, 2^154491456 is an apocalyptic number.

154491456 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 154491456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (237012480).

154491456 is an abundant number, since it is smaller than the sum of its proper divisors (319533504).

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

154491456 is a wasteful number, since it uses less digits than its factorization.

154491456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1712 (or 1702 counting only the distinct ones).

The product of its digits is 86400, while the sum is 39.

The square root of 154491456 is about 12429.4591998204. The cubic root of 154491456 is about 536.5804212233.

The spelling of 154491456 in words is "one hundred fifty-four million, four hundred ninety-one thousand, four hundred fifty-six".