122650557 has 16 divisors (see below), whose sum is σ = 170372160. Its totient is φ = 78416000.

The previous prime is 122650547. The next prime is 122650571. The reversal of 122650557 is 755056221.

It is a cyclic number.

It is not a de Polignac number, because 122650557 - 2¹¹ = 122648509 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122650537) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1194 + ... + 15707.

It is an arithmetic number, because the mean of its divisors is an integer number (10648260).

Almost surely, 2^122650557 is an apocalyptic number.

It is an amenable number.

122650557 is a deficient number, since it is larger than the sum of its proper divisors (47721603).

122650557 is a wasteful number, since it uses less digits than its factorization.

122650557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17004.

The product of its (nonzero) digits is 21000, while the sum is 33.

The square root of 122650557 is about 11074.7711940247. The cubic root of 122650557 is about 496.8475755442.

The spelling of 122650557 in words is "one hundred twenty-two million, six hundred fifty thousand, five hundred fifty-seven".