122847997 has 4 divisors (see below), whose sum is σ = 124040800. Its totient is φ = 121655196.

The previous prime is 122847979. The next prime is 122848003. The reversal of 122847997 is 799748221.

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, and also an emirpimes, since its reverse is a distinct semiprime: 799748221 = 17 ⋅47044013.

It is a cyclic number.

It is not a de Polignac number, because 122847997 - 2⁷ = 122847869 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 122847997.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122847937) 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, 596247 + ... + 596452.

It is an arithmetic number, because the mean of its divisors is an integer number (31010200).

Almost surely, 2^122847997 is an apocalyptic number.

It is an amenable number.

122847997 is a deficient number, since it is larger than the sum of its proper divisors (1192803).

122847997 is a wasteful number, since it uses less digits than its factorization.

122847997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1192802.

The product of its digits is 508032, while the sum is 49.

The square root of 122847997 is about 11083.6815634517. The cubic root of 122847997 is about 497.1140371523.

The spelling of 122847997 in words is "one hundred twenty-two million, eight hundred forty-seven thousand, nine hundred ninety-seven".