121136755 has 16 divisors (see below), whose sum is σ = 150381504. Its totient is φ = 93611520.

The previous prime is 121136753. The next prime is 121136759. The reversal of 121136755 is 557631121.

It is not a de Polignac number, because 121136755 - 2¹ = 121136753 is a prime.

It is a super-2 number, since 2×121136755² = 29348226823860050, which contains 22 as substring.

It is a Duffinian number.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (121136753) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18247 + ... + 23983.

It is an arithmetic number, because the mean of its divisors is an integer number (9398844).

Almost surely, 2^121136755 is an apocalyptic number.

121136755 is a deficient number, since it is larger than the sum of its proper divisors (29244749).

121136755 is a wasteful number, since it uses less digits than its factorization.

121136755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5886.

The product of its digits is 6300, while the sum is 31.

The square root of 121136755 is about 11006.2143809759. The cubic root of 121136755 is about 494.7950108603.

Adding to 121136755 its reverse (557631121), we get a palindrome (678767876).

The spelling of 121136755 in words is "one hundred twenty-one million, one hundred thirty-six thousand, seven hundred fifty-five".