149904369 has 12 divisors (see below), whose sum is σ = 216773700. Its totient is φ = 99823104.

The previous prime is 149904361. The next prime is 149904371. The reversal of 149904369 is 963409941.

It can be written as a sum of positive squares in 2 ways, for example, as 33005025 + 116899344 = 5745^2 + 10812^2 .

It is not a de Polignac number, because 149904369 - 2³ = 149904361 is a prime.

It is a super-2 number, since 2×149904369² = 44942639690576322, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (149904361) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 604 + ... + 17325.

It is an arithmetic number, because the mean of its divisors is an integer number (18064475).

Almost surely, 2^149904369 is an apocalyptic number.

It is an amenable number.

149904369 is a deficient number, since it is larger than the sum of its proper divisors (66869331).

149904369 is a wasteful number, since it uses less digits than its factorization.

149904369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18864 (or 18861 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 45.

The square root of 149904369 is about 12243.5439722329. The cubic root of 149904369 is about 531.2163460296.

The spelling of 149904369 in words is "one hundred forty-nine million, nine hundred four thousand, three hundred sixty-nine".