121877361 has 6 divisors (see below), whose sum is σ = 176045090. Its totient is φ = 81251568.

The previous prime is 121877347. The next prime is 121877417. The reversal of 121877361 is 163778121.

It can be written as a sum of positive squares in only one way, i.e., 107246736 + 14630625 = 10356^2 + 3825^2 .

It is not a de Polignac number, because 121877361 - 2²² = 117683057 is a prime.

It is a super-2 number, since 2×121877361² = 29708182248648642, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (121877311) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6770956 + ... + 6770973.

Almost surely, 2^121877361 is an apocalyptic number.

It is an amenable number.

121877361 is a deficient number, since it is larger than the sum of its proper divisors (54167729).

121877361 is a wasteful number, since it uses less digits than its factorization.

121877361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13541935 (or 13541932 counting only the distinct ones).

The product of its digits is 14112, while the sum is 36.

The square root of 121877361 is about 11039.8080146350. The cubic root of 121877361 is about 495.8013222341.

The spelling of 121877361 in words is "one hundred twenty-one million, eight hundred seventy-seven thousand, three hundred sixty-one".