149908140 has 72 divisors (see below), whose sum is σ = 458115840. Its totient is φ = 39677184.

The previous prime is 149908117. The next prime is 149908151. The reversal of 149908140 is 41809941.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 149908095 and 149908104.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21621 + ... + 27699.

It is an arithmetic number, because the mean of its divisors is an integer number (6362720).

Almost surely, 2^149908140 is an apocalyptic number.

149908140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 149908140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (229057920).

149908140 is an abundant number, since it is smaller than the sum of its proper divisors (308207700).

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

149908140 is a wasteful number, since it uses less digits than its factorization.

149908140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6231 (or 6226 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The square root of 149908140 is about 12243.6979707930. The cubic root of 149908140 is about 531.2208004251.

The spelling of 149908140 in words is "one hundred forty-nine million, nine hundred eight thousand, one hundred forty".