121426516 has 6 divisors (see below), whose sum is σ = 212496410. Its totient is φ = 60713256.

The previous prime is 121426493. The next prime is 121426517. The reversal of 121426516 is 615624121.

It can be written as a sum of positive squares in only one way, i.e., 120780100 + 646416 = 10990^2 + 804^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121426517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15178311 + ... + 15178318.

Almost surely, 2^121426516 is an apocalyptic number.

It is an amenable number.

121426516 is a deficient number, since it is larger than the sum of its proper divisors (91069894).

121426516 is a wasteful number, since it uses less digits than its factorization.

121426516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30356633 (or 30356631 counting only the distinct ones).

The product of its digits is 2880, while the sum is 28.

The square root of 121426516 is about 11019.3700364404. The cubic root of 121426516 is about 495.1892158301.

It can be divided in two parts, 1214 and 26516, that added together give a triangular number (27730 = T₂₃₅).

The spelling of 121426516 in words is "one hundred twenty-one million, four hundred twenty-six thousand, five hundred sixteen".