123412251 has 8 divisors (see below), whose sum is σ = 164661840. Its totient is φ = 82218752.

The previous prime is 123412241. The next prime is 123412253. The reversal of 123412251 is 152214321.

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 123412251 - 2¹³ = 123404059 is a prime.

It is not an unprimeable number, because it can be changed into a prime (123412253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8586 + ... + 17903.

It is an arithmetic number, because the mean of its divisors is an integer number (20582730).

Almost surely, 2^123412251 is an apocalyptic number.

123412251 is a deficient number, since it is larger than the sum of its proper divisors (41249589).

123412251 is a wasteful number, since it uses less digits than its factorization.

123412251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28045.

The product of its digits is 480, while the sum is 21.

The square root of 123412251 is about 11109.1066697552. The cubic root of 123412251 is about 497.8739741745.

Adding to 123412251 its reverse (152214321), we get a palindrome (275626572).

The spelling of 123412251 in words is "one hundred twenty-three million, four hundred twelve thousand, two hundred fifty-one".