121052639 has 2 divisors, whose sum is σ = 121052640. Its totient is φ = 121052638.

The previous prime is 121052579. The next prime is 121052653. The reversal of 121052639 is 936250121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121052639 - 2¹⁶ = 120987103 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121052839) 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, 60526319 + 60526320.

It is an arithmetic number, because the mean of its divisors is an integer number (60526320).

Almost surely, 2^121052639 is an apocalyptic number.

121052639 is a deficient number, since it is larger than the sum of its proper divisors (1).

121052639 is an equidigital number, since it uses as much as digits as its factorization.

121052639 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 121052639 is about 11002.3924216508. The cubic root of 121052639 is about 494.6804576448.

The spelling of 121052639 in words is "one hundred twenty-one million, fifty-two thousand, six hundred thirty-nine".