149400877 has 4 divisors (see below), whose sum is σ = 152875360. Its totient is φ = 145926396.

The previous prime is 149400863. The next prime is 149400883. The reversal of 149400877 is 778004941.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-149400877 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 (149400887) 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, 1737177 + ... + 1737262.

It is an arithmetic number, because the mean of its divisors is an integer number (38218840).

Almost surely, 2^149400877 is an apocalyptic number.

It is an amenable number.

149400877 is a deficient number, since it is larger than the sum of its proper divisors (3474483).

149400877 is an equidigital number, since it uses as much as digits as its factorization.

149400877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3474482.

The product of its (nonzero) digits is 56448, while the sum is 40.

The square root of 149400877 is about 12222.9651476227. The cubic root of 149400877 is about 530.6209371254.

The spelling of 149400877 in words is "one hundred forty-nine million, four hundred thousand, eight hundred seventy-seven".