149121075 has 48 divisors (see below), whose sum is σ = 259554816. Its totient is φ = 75398400.

The previous prime is 149121043. The next prime is 149121097. The reversal of 149121075 is 570121941.

It is not a de Polignac number, because 149121075 - 2⁵ = 149121043 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 236010 + ... + 236640.

It is an arithmetic number, because the mean of its divisors is an integer number (5407392).

Almost surely, 2^149121075 is an apocalyptic number.

149121075 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

149121075 is a deficient number, since it is larger than the sum of its proper divisors (110433741).

149121075 is a wasteful number, since it uses less digits than its factorization.

149121075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 804 (or 799 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 30.

The square root of 149121075 is about 12211.5140338944. The cubic root of 149121075 is about 530.2894763726.

The spelling of 149121075 in words is "one hundred forty-nine million, one hundred twenty-one thousand, seventy-five".