149872740 has 24 divisors (see below), whose sum is σ = 419643840. Its totient is φ = 39966048.

The previous prime is 149872721. The next prime is 149872747. The reversal of 149872740 is 47278941.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 149872692 and 149872701.

It is not an unprimeable number, because it can be changed into a prime (149872747) by changing a digit.

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, 1248880 + ... + 1248999.

It is an arithmetic number, because the mean of its divisors is an integer number (17485160).

Almost surely, 2^149872740 is an apocalyptic number.

149872740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

149872740 is an abundant number, since it is smaller than the sum of its proper divisors (269771100).

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

149872740 is a wasteful number, since it uses less digits than its factorization.

149872740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2497891 (or 2497889 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 42.

The square root of 149872740 is about 12242.2522437663. The cubic root of 149872740 is about 531.1789821561.

The spelling of 149872740 in words is "one hundred forty-nine million, eight hundred seventy-two thousand, seven hundred forty".