149966775 has 96 divisors (see below), whose sum is σ = 333550080. Its totient is φ = 64488960.

The previous prime is 149966771. The next prime is 149966777. The reversal of 149966775 is 577669941.

It is not a de Polignac number, because 149966775 - 2² = 149966771 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149966771) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 79392 + ... + 81258.

It is an arithmetic number, because the mean of its divisors is an integer number (3474480).

Almost surely, 2^149966775 is an apocalyptic number.

149966775 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

149966775 is an abundant number, since it is smaller than the sum of its proper divisors (183583305).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

149966775 is a wasteful number, since it uses less digits than its factorization.

149966775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1910 (or 1899 counting only the distinct ones).

The product of its digits is 2857680, while the sum is 54.

The square root of 149966775 is about 12246.0922338516. The cubic root of 149966775 is about 531.2900518823.

The spelling of 149966775 in words is "one hundred forty-nine million, nine hundred sixty-six thousand, seven hundred seventy-five".