123251245 has 8 divisors (see below), whose sum is σ = 159278616. Its totient is φ = 91016256.

The previous prime is 123251237. The next prime is 123251281. The reversal of 123251245 is 542152321.

It can be written as a sum of positive squares in 4 ways, for example, as 19044 + 123232201 = 138^2 + 11101^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 123251245 - 2³ = 123251237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 948022 + ... + 948151.

It is an arithmetic number, because the mean of its divisors is an integer number (19909827).

Almost surely, 2^123251245 is an apocalyptic number.

It is an amenable number.

123251245 is a deficient number, since it is larger than the sum of its proper divisors (36027371).

123251245 is a wasteful number, since it uses less digits than its factorization.

123251245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1896191.

The product of its digits is 2400, while the sum is 25.

The square root of 123251245 is about 11101.8577274256. The cubic root of 123251245 is about 497.6573679585.

The spelling of 123251245 in words is "one hundred twenty-three million, two hundred fifty-one thousand, two hundred forty-five".