154421552 has 10 divisors (see below), whose sum is σ = 299191788. Its totient is φ = 77210768.

The previous prime is 154421551. The next prime is 154421567. The reversal of 154421552 is 255124451.

It is not an unprimeable number, because it can be changed into a prime (154421551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4825658 + ... + 4825689.

Almost surely, 2^154421552 is an apocalyptic number.

It is an amenable number.

154421552 is a deficient number, since it is larger than the sum of its proper divisors (144770236).

154421552 is an equidigital number, since it uses as much as digits as its factorization.

154421552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9651355 (or 9651349 counting only the distinct ones).

The product of its digits is 8000, while the sum is 29.

The square root of 154421552 is about 12426.6468526308. The cubic root of 154421552 is about 536.4994787179.

The spelling of 154421552 in words is "one hundred fifty-four million, four hundred twenty-one thousand, five hundred fifty-two".