149094191 has 4 divisors (see below), whose sum is σ = 154235400. Its totient is φ = 143952984.

The previous prime is 149094167. The next prime is 149094193. The reversal of 149094191 is 191490941.

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

It is not a de Polignac number, because 149094191 - 2²⁶ = 81985327 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 (149094193) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2570561 + ... + 2570618.

It is an arithmetic number, because the mean of its divisors is an integer number (38558850).

Almost surely, 2^149094191 is an apocalyptic number.

149094191 is a deficient number, since it is larger than the sum of its proper divisors (5141209).

149094191 is an equidigital number, since it uses as much as digits as its factorization.

149094191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5141208.

The product of its (nonzero) digits is 11664, while the sum is 38.

The square root of 149094191 is about 12210.4132198710. The cubic root of 149094191 is about 530.2576070586.

The spelling of 149094191 in words is "one hundred forty-nine million, ninety-four thousand, one hundred ninety-one".