149315269 has 4 divisors (see below), whose sum is σ = 150793740. Its totient is φ = 147836800.

The previous prime is 149315261. The next prime is 149315279. The reversal of 149315269 is 962513941.

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 67864644 + 81450625 = 8238^2 + 9025^2 .

It is a cyclic number.

It is not a de Polignac number, because 149315269 - 2³ = 149315261 is a prime.

It is a super-2 number, since 2×149315269² = 44590099113084722, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149315261) 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, 739084 + ... + 739285.

It is an arithmetic number, because the mean of its divisors is an integer number (37698435).

Almost surely, 2^149315269 is an apocalyptic number.

It is an amenable number.

149315269 is a deficient number, since it is larger than the sum of its proper divisors (1478471).

149315269 is a wasteful number, since it uses less digits than its factorization.

149315269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1478470.

The product of its digits is 58320, while the sum is 40.

The square root of 149315269 is about 12219.4627132293. The cubic root of 149315269 is about 530.5195676260.

The spelling of 149315269 in words is "one hundred forty-nine million, three hundred fifteen thousand, two hundred sixty-nine".