149195312 has 80 divisors (see below), whose sum is σ = 345311232. Its totient is φ = 61102080.

The previous prime is 149195311. The next prime is 149195317. The reversal of 149195312 is 213591941.

It is a happy number.

It is a super-2 number, since 2×149195312² = 44518482245554688, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149195311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 336563 + ... + 337005.

Almost surely, 2^149195312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 149195312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (172655616).

149195312 is an abundant number, since it is smaller than the sum of its proper divisors (196115920).

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

149195312 is a wasteful number, since it uses less digits than its factorization.

149195312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 586 (or 580 counting only the distinct ones).

The product of its digits is 9720, while the sum is 35.

The square root of 149195312 is about 12214.5532869606. The cubic root of 149195312 is about 530.3774598428.

The spelling of 149195312 in words is "one hundred forty-nine million, one hundred ninety-five thousand, three hundred twelve".