121960615 has 16 divisors (see below), whose sum is σ = 169279488. Its totient is φ = 82620576.

The previous prime is 121960577. The next prime is 121960673. The reversal of 121960615 is 516069121.

It is a cyclic number.

It is not a de Polignac number, because 121960615 - 2¹³ = 121952423 is a prime.

It is a super-2 number, since 2×121960615² = 29748783222356450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18087 + ... + 23896.

It is an arithmetic number, because the mean of its divisors is an integer number (10579968).

Almost surely, 2^121960615 is an apocalyptic number.

121960615 is a deficient number, since it is larger than the sum of its proper divisors (47318873).

121960615 is an equidigital number, since it uses as much as digits as its factorization.

121960615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42078.

The product of its (nonzero) digits is 3240, while the sum is 31.

The square root of 121960615 is about 11043.5779980946. The cubic root of 121960615 is about 495.9141899225.

The spelling of 121960615 in words is "one hundred twenty-one million, nine hundred sixty thousand, six hundred fifteen".