121274631 has 8 divisors (see below), whose sum is σ = 179666160. Its totient is φ = 80849736.

The previous prime is 121274611. The next prime is 121274633. The reversal of 121274631 is 136472121.

121274631 is a `hidden beast` number, since 1 + 2 + 1 + 27 + 4 + 631 = 666.

It is not a de Polignac number, because 121274631 - 2¹⁵ = 121241863 is a prime.

It is a super-2 number, since 2×121274631² = 29415072248372322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 4491653 = 121274631 / (1 + 2 + 1 + 2 + 7 + 4 + 6 + 3 + 1).

It is a junction number, because it is equal to n+sod(n) for n = 121274595 and 121274604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121274633) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2245800 + ... + 2245853.

It is an arithmetic number, because the mean of its divisors is an integer number (22458270).

Almost surely, 2^121274631 is an apocalyptic number.

121274631 is a deficient number, since it is larger than the sum of its proper divisors (58391529).

121274631 is an equidigital number, since it uses as much as digits as its factorization.

121274631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4491662 (or 4491656 counting only the distinct ones).

The product of its digits is 2016, while the sum is 27.

The square root of 121274631 is about 11012.4761520741. The cubic root of 121274631 is about 494.9826623863.

The spelling of 121274631 in words is "one hundred twenty-one million, two hundred seventy-four thousand, six hundred thirty-one".