121427560 has 32 divisors (see below), whose sum is σ = 273861000. Its totient is φ = 48455680.

The previous prime is 121427533. The next prime is 121427563. The reversal of 121427560 is 65724121.

It can be written as a sum of positive squares in 4 ways, for example, as 114105124 + 7322436 = 10682^2 + 2706^2 .

It is not an unprimeable number, because it can be changed into a prime (121427563) 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, 14580 + ... + 21340.

Almost surely, 2^121427560 is an apocalyptic number.

121427560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121427560 is an abundant number, since it is smaller than the sum of its proper divisors (152433440).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121427560 is a wasteful number, since it uses less digits than its factorization.

121427560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7221 (or 7217 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 121427560 is about 11019.4174074676. The cubic root of 121427560 is about 495.1906350041.

The spelling of 121427560 in words is "one hundred twenty-one million, four hundred twenty-seven thousand, five hundred sixty".