149189313 has 48 divisors (see below), whose sum is σ = 248856576. Its totient is φ = 77837760.

The previous prime is 149189309. The next prime is 149189323. The reversal of 149189313 is 313981941.

It is a happy number.

It is not a de Polignac number, because 149189313 - 2² = 149189309 is a prime.

It is a super-2 number, since 2×149189313² = 44514902226823938, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (149189323) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 450558 + ... + 450888.

It is an arithmetic number, because the mean of its divisors is an integer number (5184512).

Almost surely, 2^149189313 is an apocalyptic number.

149189313 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

149189313 is a deficient number, since it is larger than the sum of its proper divisors (99667263).

149189313 is a wasteful number, since it uses less digits than its factorization.

149189313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 494 (or 481 counting only the distinct ones).

The product of its digits is 23328, while the sum is 39.

The square root of 149189313 is about 12214.3077167722. The cubic root of 149189313 is about 530.3703510916.

The spelling of 149189313 in words is "one hundred forty-nine million, one hundred eighty-nine thousand, three hundred thirteen".