121361837 has 2 divisors, whose sum is σ = 121361838. Its totient is φ = 121361836.

The previous prime is 121361831. The next prime is 121361893. The reversal of 121361837 is 738163121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 121242121 + 119716 = 11011^2 + 346^2 .

It is a cyclic number.

It is not a de Polignac number, because 121361837 - 2¹⁴ = 121345453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121361831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60680918 + 60680919.

It is an arithmetic number, because the mean of its divisors is an integer number (60680919).

Almost surely, 2^121361837 is an apocalyptic number.

It is an amenable number.

121361837 is a deficient number, since it is larger than the sum of its proper divisors (1).

121361837 is an equidigital number, since it uses as much as digits as its factorization.

121361837 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6048, while the sum is 32.

The square root of 121361837 is about 11016.4348588824. The cubic root of 121361837 is about 495.1012777839.

The spelling of 121361837 in words is "one hundred twenty-one million, three hundred sixty-one thousand, eight hundred thirty-seven".