121516370 has 8 divisors (see below), whose sum is σ = 218729484. Its totient is φ = 48606544.

The previous prime is 121516349. The next prime is 121516393. The reversal of 121516370 is 73615121.

It can be written as a sum of positive squares in 2 ways, for example, as 117787609 + 3728761 = 10853^2 + 1931^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6075809 + ... + 6075828.

Almost surely, 2^121516370 is an apocalyptic number.

121516370 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121516370 is a deficient number, since it is larger than the sum of its proper divisors (97213114).

121516370 is a wasteful number, since it uses less digits than its factorization.

121516370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12151644.

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 121516370 is about 11023.4463757937. The cubic root of 121516370 is about 495.3113301826.

The spelling of 121516370 in words is "one hundred twenty-one million, five hundred sixteen thousand, three hundred seventy".