149746140 has 72 divisors (see below), whose sum is σ = 469909440. Its totient is φ = 38553984.

The previous prime is 149746117. The next prime is 149746211. The reversal of 149746140 is 41647941.

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 = 149746095 and 149746104.

It is a congruent number.

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, 9124 + ... + 19563.

It is an arithmetic number, because the mean of its divisors is an integer number (6526520).

Almost surely, 2^149746140 is an apocalyptic number.

149746140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

149746140 is an abundant number, since it is smaller than the sum of its proper divisors (320163300).

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

149746140 is a wasteful number, since it uses less digits than its factorization.

149746140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28731 (or 28726 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 149746140 is about 12237.0805341797. The cubic root of 149746140 is about 531.0293747781.

The spelling of 149746140 in words is "one hundred forty-nine million, seven hundred forty-six thousand, one hundred forty".