149740 has 12 divisors (see below), whose sum is σ = 314496. Its totient is φ = 59888.

The previous prime is 149731. The next prime is 149749. The reversal of 149740 is 47941.

It is an interprime number because it is at equal distance from previous prime (149731) and next prime (149749).

It is not an unprimeable number, because it can be changed into a prime (149749) by changing a digit.

149740 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3724 + ... + 3763.

It is an arithmetic number, because the mean of its divisors is an integer number (26208).

2¹⁴⁹⁷⁴⁰ is an apocalyptic number.

149740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

149740 is an abundant number, since it is smaller than the sum of its proper divisors (164756).

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

149740 is a wasteful number, since it uses less digits than its factorization.

149740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7496 (or 7494 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 149740 is about 386.9625304858. The cubic root of 149740 is about 53.1022116795.

The spelling of 149740 in words is "one hundred forty-nine thousand, seven hundred forty".