122513971 has 2 divisors, whose sum is σ = 122513972. Its totient is φ = 122513970.

The previous prime is 122513969. The next prime is 122513987. The reversal of 122513971 is 179315221.

It is a weak prime.

It is an emirp because it is prime and its reverse (179315221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 122513971 - 2¹ = 122513969 is a prime.

Together with 122513969, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (122516971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61256985 + 61256986.

It is an arithmetic number, because the mean of its divisors is an integer number (61256986).

Almost surely, 2^122513971 is an apocalyptic number.

122513971 is a deficient number, since it is larger than the sum of its proper divisors (1).

122513971 is an equidigital number, since it uses as much as digits as its factorization.

122513971 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3780, while the sum is 31.

The square root of 122513971 is about 11068.6029380406. The cubic root of 122513971 is about 496.6630740598.

The spelling of 122513971 in words is "one hundred twenty-two million, five hundred thirteen thousand, nine hundred seventy-one".