149661675 has 30 divisors (see below), whose sum is σ = 277228908. Its totient is φ = 79818480.

The previous prime is 149661671. The next prime is 149661691. The reversal of 149661675 is 576166941.

It is not a de Polignac number, because 149661675 - 2² = 149661671 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 149661675.

It is not an unprimeable number, because it can be changed into a prime (149661671) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 34929 + ... + 38978.

Almost surely, 2^149661675 is an apocalyptic number.

149661675 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

149661675 is a deficient number, since it is larger than the sum of its proper divisors (127567233).

149661675 is an equidigital number, since it uses as much as digits as its factorization.

149661675 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73929 (or 73915 counting only the distinct ones).

The product of its digits is 272160, while the sum is 45.

The square root of 149661675 is about 12233.6288565576. The cubic root of 149661675 is about 530.9295128116.

It can be divided in two parts, 14966 and 1675, that added together give a square (16641 = 129²).

The spelling of 149661675 in words is "one hundred forty-nine million, six hundred sixty-one thousand, six hundred seventy-five".