712152121 has 2 divisors, whose sum is σ = 712152122. Its totient is φ = 712152120.

The previous prime is 712152097. The next prime is 712152139. The reversal of 712152121 is 121251217.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 534303225 + 177848896 = 23115^2 + 13336^2 .

It is a cyclic number.

It is not a de Polignac number, because 712152121 - 2²³ = 703763513 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 712152092 and 712152101.

It is not a weakly prime, because it can be changed into another prime (712152191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 356076060 + 356076061.

It is an arithmetic number, because the mean of its divisors is an integer number (356076061).

Almost surely, 2^712152121 is an apocalyptic number.

It is an amenable number.

712152121 is a deficient number, since it is larger than the sum of its proper divisors (1).

712152121 is an equidigital number, since it uses as much as digits as its factorization.

712152121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 280, while the sum is 22.

The square root of 712152121 is about 26686.1784637666. The cubic root of 712152121 is about 893.0126083608.

The spelling of 712152121 in words is "seven hundred twelve million, one hundred fifty-two thousand, one hundred twenty-one".