123416251 has 12 divisors (see below), whose sum is σ = 143750352. Its totient is φ = 105649488.

The previous prime is 123416233. The next prime is 123416263. The reversal of 123416251 is 152614321.

It is a happy number.

It is not a de Polignac number, because 123416251 - 2⁷ = 123416123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123416291) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 62881 + ... + 64813.

It is an arithmetic number, because the mean of its divisors is an integer number (11979196).

Almost surely, 2^123416251 is an apocalyptic number.

123416251 is a deficient number, since it is larger than the sum of its proper divisors (20334101).

123416251 is a wasteful number, since it uses less digits than its factorization.

123416251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3250 (or 3243 counting only the distinct ones).

The product of its digits is 1440, while the sum is 25.

The square root of 123416251 is about 11109.2867007743. The cubic root of 123416251 is about 497.8793530959.

The spelling of 123416251 in words is "one hundred twenty-three million, four hundred sixteen thousand, two hundred fifty-one".