149313215 has 4 divisors (see below), whose sum is σ = 179175864. Its totient is φ = 119450568.

The previous prime is 149313211. The next prime is 149313223. The reversal of 149313215 is 512313941.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 149313215 - 2² = 149313211 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 (149313211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14931317 + ... + 14931326.

It is an arithmetic number, because the mean of its divisors is an integer number (44793966).

Almost surely, 2^149313215 is an apocalyptic number.

149313215 is a deficient number, since it is larger than the sum of its proper divisors (29862649).

149313215 is an equidigital number, since it uses as much as digits as its factorization.

149313215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29862648.

The product of its digits is 3240, while the sum is 29.

The square root of 149313215 is about 12219.3786666917. The cubic root of 149313215 is about 530.5171349831.

The spelling of 149313215 in words is "one hundred forty-nine million, three hundred thirteen thousand, two hundred fifteen".