121516037 has 2 divisors, whose sum is σ = 121516038. Its totient is φ = 121516036.

The previous prime is 121516027. The next prime is 121516049. The reversal of 121516037 is 730615121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 111492481 + 10023556 = 10559^2 + 3166^2 .

It is a cyclic number.

It is not a de Polignac number, because 121516037 - 2⁶ = 121515973 is a prime.

It is a super-2 number, since 2×121516037² = 29532294496370738, which contains 22 as substring.

It is a Chen prime.

It is equal to p_6923051 and since 121516037 and 6923051 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 121515997 and 121516015.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121516027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60758018 + 60758019.

It is an arithmetic number, because the mean of its divisors is an integer number (60758019).

Almost surely, 2^121516037 is an apocalyptic number.

It is an amenable number.

121516037 is a deficient number, since it is larger than the sum of its proper divisors (1).

121516037 is an equidigital number, since it uses as much as digits as its factorization.

121516037 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 121516037 is about 11023.4312716141. The cubic root of 121516037 is about 495.3108777365.

The spelling of 121516037 in words is "one hundred twenty-one million, five hundred sixteen thousand, thirty-seven".