121162687 has 2 divisors, whose sum is σ = 121162688. Its totient is φ = 121162686.

The previous prime is 121162681. The next prime is 121162697. The reversal of 121162687 is 786261121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121162687 - 2¹⁵ = 121129919 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121162681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60581343 + 60581344.

It is an arithmetic number, because the mean of its divisors is an integer number (60581344).

Almost surely, 2^121162687 is an apocalyptic number.

121162687 is a deficient number, since it is larger than the sum of its proper divisors (1).

121162687 is an equidigital number, since it uses as much as digits as its factorization.

121162687 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8064, while the sum is 34.

The square root of 121162687 is about 11007.3923796692. The cubic root of 121162687 is about 494.8303156108.

The spelling of 121162687 in words is "one hundred twenty-one million, one hundred sixty-two thousand, six hundred eighty-seven".