122961559 has 8 divisors (see below), whose sum is σ = 147923840. Its totient is φ = 99848376.

The previous prime is 122961557. The next prime is 122961569. The reversal of 122961559 is 955169221.

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 122961559 - 2¹ = 122961557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122961551) 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, 462129 + ... + 462394.

It is an arithmetic number, because the mean of its divisors is an integer number (18490480).

Almost surely, 2^122961559 is an apocalyptic number.

122961559 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

122961559 is a deficient number, since it is larger than the sum of its proper divisors (24962281).

122961559 is an equidigital number, since it uses as much as digits as its factorization.

122961559 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 924549.

The product of its digits is 48600, while the sum is 40.

The square root of 122961559 is about 11088.8033168598. The cubic root of 122961559 is about 497.2671691508.

The spelling of 122961559 in words is "one hundred twenty-two million, nine hundred sixty-one thousand, five hundred fifty-nine".