121352015 has 8 divisors (see below), whose sum is σ = 146056560. Its totient is φ = 96792192.

The previous prime is 121352003. The next prime is 121352039. The reversal of 121352015 is 510253121.

It is a happy number.

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 121352015 - 2⁴ = 121351999 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34325 + ... + 37694.

It is an arithmetic number, because the mean of its divisors is an integer number (18257070).

Almost surely, 2^121352015 is an apocalyptic number.

121352015 is a deficient number, since it is larger than the sum of its proper divisors (24704545).

121352015 is an equidigital number, since it uses as much as digits as its factorization.

121352015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72361.

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 121352015 is about 11015.9890613599. The cubic root of 121352015 is about 495.0879209878.

The spelling of 121352015 in words is "one hundred twenty-one million, three hundred fifty-two thousand, fifteen".