121695449 has 2 divisors, whose sum is σ = 121695450. Its totient is φ = 121695448.

The previous prime is 121695439. The next prime is 121695467. The reversal of 121695449 is 944596121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 76038400 + 45657049 = 8720^2 + 6757^2 .

It is a cyclic number.

It is not a de Polignac number, because 121695449 - 2⁴ = 121695433 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (121695419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60847724 + 60847725.

It is an arithmetic number, because the mean of its divisors is an integer number (60847725).

Almost surely, 2^121695449 is an apocalyptic number.

It is an amenable number.

121695449 is a deficient number, since it is larger than the sum of its proper divisors (1).

121695449 is an equidigital number, since it uses as much as digits as its factorization.

121695449 is an evil number, because the sum of its binary digits is even.

The product of its digits is 77760, while the sum is 41.

The square root of 121695449 is about 11031.5660266347. The cubic root of 121695449 is about 495.5545246343.

The spelling of 121695449 in words is "one hundred twenty-one million, six hundred ninety-five thousand, four hundred forty-nine".