123486451 has 4 divisors (see below), whose sum is σ = 134712504. Its totient is φ = 112260400.

The previous prime is 123486421. The next prime is 123486463. The reversal of 123486451 is 154684321.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 123486451 - 2⁹ = 123485939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123486421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5613010 + ... + 5613031.

It is an arithmetic number, because the mean of its divisors is an integer number (33678126).

Almost surely, 2^123486451 is an apocalyptic number.

123486451 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

123486451 is a deficient number, since it is larger than the sum of its proper divisors (11226053).

123486451 is a wasteful number, since it uses less digits than its factorization.

123486451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11226052.

The product of its digits is 23040, while the sum is 34.

The square root of 123486451 is about 11112.4457703964. The cubic root of 123486451 is about 497.9737342534.

The spelling of 123486451 in words is "one hundred twenty-three million, four hundred eighty-six thousand, four hundred fifty-one".