415372121 has 2 divisors, whose sum is σ = 415372122. Its totient is φ = 415372120.

The previous prime is 415372109. The next prime is 415372123. The reversal of 415372121 is 121273514.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 397563721 + 17808400 = 19939^2 + 4220^2 .

It is a cyclic number.

It is not a de Polignac number, because 415372121 - 2¹⁴ = 415355737 is a prime.

Together with 415372123, 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 (415372123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 207686060 + 207686061.

It is an arithmetic number, because the mean of its divisors is an integer number (207686061).

Almost surely, 2^415372121 is an apocalyptic number.

It is an amenable number.

415372121 is a deficient number, since it is larger than the sum of its proper divisors (1).

415372121 is an equidigital number, since it uses as much as digits as its factorization.

415372121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1680, while the sum is 26.

The square root of 415372121 is about 20380.6800916947. The cubic root of 415372121 is about 746.1264708780.

The spelling of 415372121 in words is "four hundred fifteen million, three hundred seventy-two thousand, one hundred twenty-one".