154421252 has 12 divisors (see below), whose sum is σ = 276828636. Its totient is φ = 75327360.

The previous prime is 154421243. The next prime is 154421257. The reversal of 154421252 is 252124451.

154421252 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 4946176 + 149475076 = 2224^2 + 12226^2 .

It is not an unprimeable number, because it can be changed into a prime (154421257) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 470633 + ... + 470960.

It is an arithmetic number, because the mean of its divisors is an integer number (23069053).

Almost surely, 2^154421252 is an apocalyptic number.

It is an amenable number.

154421252 is a deficient number, since it is larger than the sum of its proper divisors (122407384).

154421252 is a wasteful number, since it uses less digits than its factorization.

154421252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 941638 (or 941636 counting only the distinct ones).

The product of its digits is 3200, while the sum is 26.

The square root of 154421252 is about 12426.6347817903. The cubic root of 154421252 is about 536.4991312924.

The spelling of 154421252 in words is "one hundred fifty-four million, four hundred twenty-one thousand, two hundred fifty-two".