121906079 has 8 divisors (see below), whose sum is σ = 125248032. Its totient is φ = 118581760.

The previous prime is 121906073. The next prime is 121906093. The reversal of 121906079 is 970609121.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121906079 is a prime.

It is a super-2 number, since 2×121906079² = 29722184194308482, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121906073) 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, 10262 + ... + 18684.

It is an arithmetic number, because the mean of its divisors is an integer number (15656004).

Almost surely, 2^121906079 is an apocalyptic number.

121906079 is a deficient number, since it is larger than the sum of its proper divisors (3341953).

121906079 is an equidigital number, since it uses as much as digits as its factorization.

121906079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8817.

The product of its (nonzero) digits is 6804, while the sum is 35.

The square root of 121906079 is about 11041.1085947019. The cubic root of 121906079 is about 495.8402611151.

It can be divided in two parts, 12 and 1906079, that added together give a palindrome (1906091).

The spelling of 121906079 in words is "one hundred twenty-one million, nine hundred six thousand, seventy-nine".