122498262157 has 4 divisors (see below), whose sum is σ = 124326594496. Its totient is φ = 120669929820.

The previous prime is 122498262151. The next prime is 122498262167. The reversal of 122498262157 is 751262894221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122498262157 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 122498262157.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122498262151) 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, 914166069 + ... + 914166202.

It is an arithmetic number, because the mean of its divisors is an integer number (31081648624).

Almost surely, 2^122498262157 is an apocalyptic number.

It is an amenable number.

122498262157 is a deficient number, since it is larger than the sum of its proper divisors (1828332339).

122498262157 is an equidigital number, since it uses as much as digits as its factorization.

122498262157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1828332338.

The product of its digits is 967680, while the sum is 49.

The spelling of 122498262157 in words is "one hundred twenty-two billion, four hundred ninety-eight million, two hundred sixty-two thousand, one hundred fifty-seven".