149577213 has 8 divisors (see below), whose sum is σ = 202816800. Its totient is φ = 98027888.

The previous prime is 149577209. The next prime is 149577221. The reversal of 149577213 is 312775941.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 149577213 - 2² = 149577209 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149577223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 422358 + ... + 422711.

It is an arithmetic number, because the mean of its divisors is an integer number (25352100).

Almost surely, 2^149577213 is an apocalyptic number.

It is an amenable number.

149577213 is a deficient number, since it is larger than the sum of its proper divisors (53239587).

149577213 is an equidigital number, since it uses as much as digits as its factorization.

149577213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 845131.

The product of its digits is 52920, while the sum is 39.

The square root of 149577213 is about 12230.1763274288. The cubic root of 149577213 is about 530.8296168140.

The spelling of 149577213 in words is "one hundred forty-nine million, five hundred seventy-seven thousand, two hundred thirteen".