149956977 has 8 divisors (see below), whose sum is σ = 200165760. Its totient is φ = 99859760.

The previous prime is 149956973. The next prime is 149957011. The reversal of 149956977 is 779659941.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 149956977 - 2² = 149956973 is a prime.

It is not an unprimeable number, because it can be changed into a prime (149956973) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24702 + ... + 30167.

It is an arithmetic number, because the mean of its divisors is an integer number (25020720).

Almost surely, 2^149956977 is an apocalyptic number.

It is an amenable number.

149956977 is a deficient number, since it is larger than the sum of its proper divisors (50208783).

149956977 is an equidigital number, since it uses as much as digits as its factorization.

149956977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55783.

The product of its digits is 4286520, while the sum is 57.

The square root of 149956977 is about 12245.6921813346. The cubic root of 149956977 is about 531.2784811120.

The spelling of 149956977 in words is "one hundred forty-nine million, nine hundred fifty-six thousand, nine hundred seventy-seven".