122155651 has 2 divisors, whose sum is σ = 122155652. Its totient is φ = 122155650.

The previous prime is 122155613. The next prime is 122155661. The reversal of 122155651 is 156551221.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122155651 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (122155661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61077825 + 61077826.

It is an arithmetic number, because the mean of its divisors is an integer number (61077826).

Almost surely, 2^122155651 is an apocalyptic number.

122155651 is a deficient number, since it is larger than the sum of its proper divisors (1).

122155651 is an equidigital number, since it uses as much as digits as its factorization.

122155651 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3000, while the sum is 28.

The square root of 122155651 is about 11052.4047609559. The cubic root of 122155651 is about 496.1783998283.

The spelling of 122155651 in words is "one hundred twenty-two million, one hundred fifty-five thousand, six hundred fifty-one".