970518121 has 2 divisors, whose sum is σ = 970518122. Its totient is φ = 970518120.

The previous prime is 970518091. The next prime is 970518163. The reversal of 970518121 is 121815079.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 964972096 + 5546025 = 31064^2 + 2355^2 .

It is an emirp because it is prime and its reverse (121815079) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 970518121 - 2¹⁵ = 970485353 is a prime.

It is not a weakly prime, because it can be changed into another prime (970516121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 485259060 + 485259061.

It is an arithmetic number, because the mean of its divisors is an integer number (485259061).

Almost surely, 2^970518121 is an apocalyptic number.

It is an amenable number.

970518121 is a deficient number, since it is larger than the sum of its proper divisors (1).

970518121 is an equidigital number, since it uses as much as digits as its factorization.

970518121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5040, while the sum is 34.

The square root of 970518121 is about 31153.1398257062. The cubic root of 970518121 is about 990.0745177388.

The spelling of 970518121 in words is "nine hundred seventy million, five hundred eighteen thousand, one hundred twenty-one".