149911940 has 12 divisors (see below), whose sum is σ = 314815116. Its totient is φ = 59964768.

The previous prime is 149911891. The next prime is 149911969. The reversal of 149911940 is 49119941.

It can be written as a sum of positive squares in 2 ways, for example, as 73034116 + 76877824 = 8546^2 + 8768^2 .

It is a junction number, because it is equal to n+sod(n) for n = 149911894 and 149911903.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3747779 + ... + 3747818.

It is an arithmetic number, because the mean of its divisors is an integer number (26234593).

Almost surely, 2^149911940 is an apocalyptic number.

149911940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

149911940 is an abundant number, since it is smaller than the sum of its proper divisors (164903176).

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

149911940 is a wasteful number, since it uses less digits than its factorization.

149911940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7495606 (or 7495604 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 38.

The square root of 149911940 is about 12243.8531516839. The cubic root of 149911940 is about 531.2252890005.

The spelling of 149911940 in words is "one hundred forty-nine million, nine hundred eleven thousand, nine hundred forty".