121534951 has 2 divisors, whose sum is σ = 121534952. Its totient is φ = 121534950.

The previous prime is 121534939. The next prime is 121534957. The reversal of 121534951 is 159435121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121534951 - 2¹¹ = 121532903 is a prime.

It is a zygodrome in base 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121534957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60767475 + 60767476.

It is an arithmetic number, because the mean of its divisors is an integer number (60767476).

Almost surely, 2^121534951 is an apocalyptic number.

121534951 is a deficient number, since it is larger than the sum of its proper divisors (1).

121534951 is an equidigital number, since it uses as much as digits as its factorization.

121534951 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5400, while the sum is 31.

The square root of 121534951 is about 11024.2891380805. The cubic root of 121534951 is about 495.3365748219.

The spelling of 121534951 in words is "one hundred twenty-one million, five hundred thirty-four thousand, nine hundred fifty-one".