154990456 has 16 divisors (see below), whose sum is σ = 290951640. Its totient is φ = 77403360.

The previous prime is 154990453. The next prime is 154990469. The reversal of 154990456 is 654099451.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154990453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4030 + ... + 18061.

Almost surely, 2^154990456 is an apocalyptic number.

It is an amenable number.

154990456 is a deficient number, since it is larger than the sum of its proper divisors (135961184).

154990456 is a wasteful number, since it uses less digits than its factorization.

154990456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22974 (or 22970 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 43.

The square root of 154990456 is about 12449.5162958245. The cubic root of 154990456 is about 537.1575100284.

The spelling of 154990456 in words is "one hundred fifty-four million, nine hundred ninety thousand, four hundred fifty-six".