123574369 has 4 divisors (see below), whose sum is σ = 126588420. Its totient is φ = 120560320.

The previous prime is 123574361. The next prime is 123574397. The reversal of 123574369 is 963475321.

It is a happy number.

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 21967969 + 101606400 = 4687^2 + 10080^2 .

It is a cyclic number.

It is not a de Polignac number, because 123574369 - 2³ = 123574361 is a prime.

It is a super-2 number, since 2×123574369² = 30541249347496322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123574361) 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, 1506964 + ... + 1507045.

It is an arithmetic number, because the mean of its divisors is an integer number (31647105).

Almost surely, 2^123574369 is an apocalyptic number.

It is an amenable number.

123574369 is a deficient number, since it is larger than the sum of its proper divisors (3014051).

123574369 is an equidigital number, since it uses as much as digits as its factorization.

123574369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3014050.

The product of its digits is 136080, while the sum is 40.

The square root of 123574369 is about 11116.4009013709. The cubic root of 123574369 is about 498.0918861326.

The spelling of 123574369 in words is "one hundred twenty-three million, five hundred seventy-four thousand, three hundred sixty-nine".