149473369 has 2 divisors, whose sum is σ = 149473370. Its totient is φ = 149473368.

The previous prime is 149473339. The next prime is 149473391. The reversal of 149473369 is 963374941.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 82446400 + 67026969 = 9080^2 + 8187^2 .

It is a cyclic number.

It is not a de Polignac number, because 149473369 - 2¹⁵ = 149440601 is a prime.

It is a super-2 number, since 2×149473369² = 44684576080420322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (149473309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74736684 + 74736685.

It is an arithmetic number, because the mean of its divisors is an integer number (74736685).

Almost surely, 2^149473369 is an apocalyptic number.

It is an amenable number.

149473369 is a deficient number, since it is larger than the sum of its proper divisors (1).

149473369 is an equidigital number, since it uses as much as digits as its factorization.

149473369 is an evil number, because the sum of its binary digits is even.

The product of its digits is 489888, while the sum is 46.

The square root of 149473369 is about 12225.9301895602. The cubic root of 149473369 is about 530.7067455311.

The spelling of 149473369 in words is "one hundred forty-nine million, four hundred seventy-three thousand, three hundred sixty-nine".