149421183 has 4 divisors (see below), whose sum is σ = 199228248. Its totient is φ = 99614120.

The previous prime is 149421163. The next prime is 149421191. The reversal of 149421183 is 381124941.

It is a happy number.

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 149421183 - 2⁶ = 149421119 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149421163) 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, 24903528 + ... + 24903533.

It is an arithmetic number, because the mean of its divisors is an integer number (49807062).

Almost surely, 2^149421183 is an apocalyptic number.

149421183 is a deficient number, since it is larger than the sum of its proper divisors (49807065).

149421183 is an equidigital number, since it uses as much as digits as its factorization.

149421183 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49807064.

The product of its digits is 6912, while the sum is 33.

The square root of 149421183 is about 12223.7957689091. The cubic root of 149421183 is about 530.6449760307.

The spelling of 149421183 in words is "one hundred forty-nine million, four hundred twenty-one thousand, one hundred eighty-three".