123551413 has 8 divisors (see below), whose sum is σ = 125864960. Its totient is φ = 121247280.

The previous prime is 123551383. The next prime is 123551419. The reversal of 123551413 is 314155321.

It is a happy number.

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 123551413 - 2²⁵ = 89996981 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123551419) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27628 + ... + 31786.

It is an arithmetic number, because the mean of its divisors is an integer number (15733120).

Almost surely, 2^123551413 is an apocalyptic number.

It is an amenable number.

123551413 is a deficient number, since it is larger than the sum of its proper divisors (2313547).

123551413 is an equidigital number, since it uses as much as digits as its factorization.

123551413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4707.

The product of its digits is 1800, while the sum is 25.

The square root of 123551413 is about 11115.3683249814. The cubic root of 123551413 is about 498.0610412642.

The spelling of 123551413 in words is "one hundred twenty-three million, five hundred fifty-one thousand, four hundred thirteen".