121416453 has 6 divisors (see below), whose sum is σ = 175379334. Its totient is φ = 80944296.

The previous prime is 121416437. The next prime is 121416469. The reversal of 121416453 is 354614121.

It is a happy number.

121416453 is a `hidden beast` number, since 1 + 2 + 14 + 1 + 645 + 3 = 666.

It is an interprime number because it is at equal distance from previous prime (121416437) and next prime (121416469).

It can be written as a sum of positive squares in only one way, i.e., 95589729 + 25826724 = 9777^2 + 5082^2 .

It is not a de Polignac number, because 121416453 - 2⁴ = 121416437 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121416653) 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, 6745350 + ... + 6745367.

It is an arithmetic number, because the mean of its divisors is an integer number (29229889).

Almost surely, 2^121416453 is an apocalyptic number.

It is an amenable number.

121416453 is a deficient number, since it is larger than the sum of its proper divisors (53962881).

121416453 is a wasteful number, since it uses less digits than its factorization.

121416453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13490723 (or 13490720 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 121416453 is about 11018.9134219305. The cubic root of 121416453 is about 495.1755361526.

The spelling of 121416453 in words is "one hundred twenty-one million, four hundred sixteen thousand, four hundred fifty-three".