149299856 has 10 divisors (see below), whose sum is σ = 289268502. Its totient is φ = 74649920.

The previous prime is 149299823. The next prime is 149299861. The reversal of 149299856 is 658992941.

It can be written as a sum of positive squares in only one way, i.e., 133171600 + 16128256 = 11540^2 + 4016^2 .

It is a junction number, because it is equal to n+sod(n) for n = 149299798 and 149299807.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4665605 + ... + 4665636.

Almost surely, 2^149299856 is an apocalyptic number.

149299856 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

149299856 is a deficient number, since it is larger than the sum of its proper divisors (139968646).

149299856 is an equidigital number, since it uses as much as digits as its factorization.

149299856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9331249 (or 9331243 counting only the distinct ones).

The product of its digits is 1399680, while the sum is 53.

The square root of 149299856 is about 12218.8320227426. The cubic root of 149299856 is about 530.5013127850.

The spelling of 149299856 in words is "one hundred forty-nine million, two hundred ninety-nine thousand, eight hundred fifty-six".