122547412651 has 4 divisors (see below), whose sum is σ = 122738594904. Its totient is φ = 122356230400.

The previous prime is 122547412613. The next prime is 122547412657. The reversal of 122547412651 is 156214745221.

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 122547412651 - 2⁹ = 122547412139 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122547412657) 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, 95590165 + ... + 95591446.

It is an arithmetic number, because the mean of its divisors is an integer number (30684648726).

Almost surely, 2^122547412651 is an apocalyptic number.

122547412651 is a deficient number, since it is larger than the sum of its proper divisors (191182253).

122547412651 is an equidigital number, since it uses as much as digits as its factorization.

122547412651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191182252.

The product of its digits is 134400, while the sum is 40.

The spelling of 122547412651 in words is "one hundred twenty-two billion, five hundred forty-seven million, four hundred twelve thousand, six hundred fifty-one".