121272533 has 4 divisors (see below), whose sum is σ = 123560748. Its totient is φ = 118984320.

The previous prime is 121272523. The next prime is 121272551. The reversal of 121272533 is 335272121.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 39225169 + 82047364 = 6263^2 + 9058^2 .

It is a cyclic number.

It is not a de Polignac number, because 121272533 - 2⁴ = 121272517 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121272523) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1144028 + ... + 1144133.

It is an arithmetic number, because the mean of its divisors is an integer number (30890187).

Almost surely, 2^121272533 is an apocalyptic number.

It is an amenable number.

121272533 is a deficient number, since it is larger than the sum of its proper divisors (2288215).

121272533 is an equidigital number, since it uses as much as digits as its factorization.

121272533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2288214.

The product of its digits is 2520, while the sum is 26.

The square root of 121272533 is about 11012.3808960642. The cubic root of 121272533 is about 494.9798080394.

The spelling of 121272533 in words is "one hundred twenty-one million, two hundred seventy-two thousand, five hundred thirty-three".