121054513 has 8 divisors (see below), whose sum is σ = 122908968. Its totient is φ = 119205504.

The previous prime is 121054511. The next prime is 121054517. The reversal of 121054513 is 315450121.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 7354944 + 113699569 = 2712^2 + 10663^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 121054513 - 2¹ = 121054511 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121054511) 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, 73131 + ... + 74767.

It is an arithmetic number, because the mean of its divisors is an integer number (15363621).

Almost surely, 2^121054513 is an apocalyptic number.

It is an amenable number.

121054513 is a deficient number, since it is larger than the sum of its proper divisors (1854455).

121054513 is a wasteful number, since it uses less digits than its factorization.

121054513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2723.

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 121054513 is about 11002.4775846170. The cubic root of 121054513 is about 494.6830103260.

The spelling of 121054513 in words is "one hundred twenty-one million, fifty-four thousand, five hundred thirteen".