154939938 has 32 divisors (see below), whose sum is σ = 328826304. Its totient is φ = 48502272.

The previous prime is 154939933. The next prime is 154939949. The reversal of 154939938 is 839939451.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (154939931) by changing a digit.

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, 54406 + ... + 57182.

It is an arithmetic number, because the mean of its divisors is an integer number (10275822).

Almost surely, 2^154939938 is an apocalyptic number.

154939938 is an abundant number, since it is smaller than the sum of its proper divisors (173886366).

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

154939938 is a wasteful number, since it uses less digits than its factorization.

154939938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3346.

The product of its digits is 1049760, while the sum is 51.

The square root of 154939938 is about 12447.4872163019. The cubic root of 154939938 is about 537.0991428390.

The spelling of 154939938 in words is "one hundred fifty-four million, nine hundred thirty-nine thousand, nine hundred thirty-eight".