149410857 has 4 divisors (see below), whose sum is σ = 199214480. Its totient is φ = 99607236.

The previous prime is 149410837. The next prime is 149410861. The reversal of 149410857 is 758014941.

149410857 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 not a de Polignac number, because 149410857 - 2²³ = 141022249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (149410837) 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, 24901807 + ... + 24901812.

It is an arithmetic number, because the mean of its divisors is an integer number (49803620).

Almost surely, 2^149410857 is an apocalyptic number.

It is an amenable number.

149410857 is a deficient number, since it is larger than the sum of its proper divisors (49803623).

149410857 is an equidigital number, since it uses as much as digits as its factorization.

149410857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49803622.

The product of its (nonzero) digits is 40320, while the sum is 39.

The square root of 149410857 is about 12223.3733887172. The cubic root of 149410857 is about 530.6327520472.

The spelling of 149410857 in words is "one hundred forty-nine million, four hundred ten thousand, eight hundred fifty-seven".