149298391 has 12 divisors (see below), whose sum is σ = 164726352. Its totient is φ = 135212000.

The previous prime is 149298341. The next prime is 149298419. The reversal of 149298391 is 193892941.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-149298391 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149298341) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31806 + ... + 36196.

It is an arithmetic number, because the mean of its divisors is an integer number (13727196).

Almost surely, 2^149298391 is an apocalyptic number.

149298391 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

149298391 is a deficient number, since it is larger than the sum of its proper divisors (15427961).

149298391 is a wasteful number, since it uses less digits than its factorization.

149298391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4694 (or 4683 counting only the distinct ones).

The product of its digits is 139968, while the sum is 46.

The square root of 149298391 is about 12218.7720741489. The cubic root of 149298391 is about 530.4995776037.

The spelling of 149298391 in words is "one hundred forty-nine million, two hundred ninety-eight thousand, three hundred ninety-one".