149032129 has 4 divisors (see below), whose sum is σ = 149104260. Its totient is φ = 148960000.

The previous prime is 149032127. The next prime is 149032141. The reversal of 149032129 is 921230941.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 85988529 + 63043600 = 9273^2 + 7940^2 .

It is a cyclic number.

It is not a de Polignac number, because 149032129 - 2¹ = 149032127 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 149032129.

It is not an unprimeable number, because it can be changed into a prime (149032123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32872 + ... + 37129.

It is an arithmetic number, because the mean of its divisors is an integer number (37276065).

Almost surely, 2^149032129 is an apocalyptic number.

It is an amenable number.

149032129 is a deficient number, since it is larger than the sum of its proper divisors (72131).

149032129 is an equidigital number, since it uses as much as digits as its factorization.

149032129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72130.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 149032129 is about 12207.8715999145. The cubic root of 149032129 is about 530.1840217752.

The spelling of 149032129 in words is "one hundred forty-nine million, thirty-two thousand, one hundred twenty-nine".