122699091 has 8 divisors (see below), whose sum is σ = 164251584. Its totient is φ = 81473000.

The previous prime is 122699077. The next prime is 122699117. The reversal of 122699091 is 190996221.

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 122699091 - 2¹⁹ = 122174803 is a prime.

It is not an unprimeable number, because it can be changed into a prime (122699051) 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, 80721 + ... + 82226.

It is an arithmetic number, because the mean of its divisors is an integer number (20531448).

Almost surely, 2^122699091 is an apocalyptic number.

122699091 is a deficient number, since it is larger than the sum of its proper divisors (41552493).

122699091 is a wasteful number, since it uses less digits than its factorization.

122699091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163201.

The product of its (nonzero) digits is 17496, while the sum is 39.

The square root of 122699091 is about 11076.9621738092. The cubic root of 122699091 is about 496.9131026830.

The spelling of 122699091 in words is "one hundred twenty-two million, six hundred ninety-nine thousand, ninety-one".