123372049 has 4 divisors (see below), whose sum is σ = 123559920. Its totient is φ = 123184180.

The previous prime is 123372047. The next prime is 123372059. The reversal of 123372049 is 940273321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 123372049 - 2¹ = 123372047 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 123372049.

It is not an unprimeable number, because it can be changed into a prime (123372047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92947 + ... + 94264.

It is an arithmetic number, because the mean of its divisors is an integer number (30889980).

Almost surely, 2^123372049 is an apocalyptic number.

It is an amenable number.

123372049 is a deficient number, since it is larger than the sum of its proper divisors (187871).

123372049 is an equidigital number, since it uses as much as digits as its factorization.

123372049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187870.

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 123372049 is about 11107.2971059570. The cubic root of 123372049 is about 497.8199068700.

The spelling of 123372049 in words is "one hundred twenty-three million, three hundred seventy-two thousand, forty-nine".