149569133 has 16 divisors (see below), whose sum is σ = 178452864. Its totient is φ = 122679360.

The previous prime is 149569129. The next prime is 149569139. The reversal of 149569133 is 331965941.

It is a cyclic number.

It is not a de Polignac number, because 149569133 - 2² = 149569129 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149569139) 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, 11066 + ... + 20532.

It is an arithmetic number, because the mean of its divisors is an integer number (11153304).

Almost surely, 2^149569133 is an apocalyptic number.

It is an amenable number.

149569133 is a deficient number, since it is larger than the sum of its proper divisors (28883731).

149569133 is an equidigital number, since it uses as much as digits as its factorization.

149569133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9572.

The product of its digits is 87480, while the sum is 41.

The square root of 149569133 is about 12229.8459924890. The cubic root of 149569133 is about 530.8200583604.

The spelling of 149569133 in words is "one hundred forty-nine million, five hundred sixty-nine thousand, one hundred thirty-three".