149669051 has 16 divisors (see below), whose sum is σ = 174482880. Its totient is φ = 125729280.

The previous prime is 149669021. The next prime is 149669057. The reversal of 149669051 is 150966941.

It is a cyclic number.

It is not a de Polignac number, because 149669051 - 2¹⁰ = 149668027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (149669057) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 174215 + ... + 175071.

It is an arithmetic number, because the mean of its divisors is an integer number (10905180).

Almost surely, 2^149669051 is an apocalyptic number.

149669051 is a deficient number, since it is larger than the sum of its proper divisors (24813829).

149669051 is an equidigital number, since it uses as much as digits as its factorization.

149669051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1334.

The product of its (nonzero) digits is 58320, while the sum is 41.

The square root of 149669051 is about 12233.9303169505. The cubic root of 149669051 is about 530.9382348659.

The spelling of 149669051 in words is "one hundred forty-nine million, six hundred sixty-nine thousand, fifty-one".