154540922 has 4 divisors (see below), whose sum is σ = 231811386. Its totient is φ = 77270460.

The previous prime is 154540901. The next prime is 154540949. The reversal of 154540922 is 229045451.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 134119561 + 20421361 = 11581^2 + 4519^2 .

It is a super-2 number, since 2×154540922² = 47765793145220168, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38635229 + ... + 38635232.

Almost surely, 2^154540922 is an apocalyptic number.

154540922 is a deficient number, since it is larger than the sum of its proper divisors (77270464).

154540922 is an equidigital number, since it uses as much as digits as its factorization.

154540922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77270463.

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 154540922 is about 12431.4489099220. The cubic root of 154540922 is about 536.6376836235.

The spelling of 154540922 in words is "one hundred fifty-four million, five hundred forty thousand, nine hundred twenty-two".