154099940 has 24 divisors (see below), whose sum is σ = 327249720. Its totient is φ = 60946688.

The previous prime is 154099919. The next prime is 154099963. The reversal of 154099940 is 49990451.

It is a happy number.

154099940 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 4 ways, for example, as 984064 + 153115876 = 992^2 + 12374^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41507 + ... + 45066.

It is an arithmetic number, because the mean of its divisors is an integer number (13635405).

Almost surely, 2^154099940 is an apocalyptic number.

154099940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

154099940 is an abundant number, since it is smaller than the sum of its proper divisors (173149780).

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

154099940 is a wasteful number, since it uses less digits than its factorization.

154099940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86671 (or 86669 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 41.

The square root of 154099940 is about 12413.6996902616. The cubic root of 154099940 is about 536.1267660740.

The spelling of 154099940 in words is "one hundred fifty-four million, ninety-nine thousand, nine hundred forty".