121536435 has 16 divisors (see below), whose sum is σ = 194759424. Its totient is φ = 64719072.

The previous prime is 121536433. The next prime is 121536449. The reversal of 121536435 is 534635121.

It is not a de Polignac number, because 121536435 - 2¹ = 121536433 is a prime.

It is a super-3 number, since 3×121536435³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (121536433) 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, 4314 + ... + 16176.

It is an arithmetic number, because the mean of its divisors is an integer number (12172464).

Almost surely, 2^121536435 is an apocalyptic number.

121536435 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

121536435 is a deficient number, since it is larger than the sum of its proper divisors (73222989).

121536435 is a wasteful number, since it uses less digits than its factorization.

121536435 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12554.

The product of its digits is 10800, while the sum is 30.

The square root of 121536435 is about 11024.3564438021. The cubic root of 121536435 is about 495.3385909127.

The spelling of 121536435 in words is "one hundred twenty-one million, five hundred thirty-six thousand, four hundred thirty-five".