121145480 has 32 divisors (see below), whose sum is σ = 273248640. Its totient is φ = 48338880.

The previous prime is 121145459. The next prime is 121145483. The reversal of 121145480 is 84541121.

It is a super-3 number, since 3×121145480³ (a number of 25 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (121145483) 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, 13727 + ... + 20753.

It is an arithmetic number, because the mean of its divisors is an integer number (8539020).

Almost surely, 2^121145480 is an apocalyptic number.

121145480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121145480 is an abundant number, since it is smaller than the sum of its proper divisors (152103160).

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

121145480 is a wasteful number, since it uses less digits than its factorization.

121145480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7469 (or 7465 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 26.

The square root of 121145480 is about 11006.6107408230. The cubic root of 121145480 is about 494.8068899491.

The spelling of 121145480 in words is "one hundred twenty-one million, one hundred forty-five thousand, four hundred eighty".