122572261 has 8 divisors (see below), whose sum is σ = 148322880. Its totient is φ = 98881728.

The previous prime is 122572237. The next prime is 122572277. The reversal of 122572261 is 162275221.

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-122572261 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 (122572201) 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, 514891 + ... + 515128.

It is an arithmetic number, because the mean of its divisors is an integer number (18540360).

Almost surely, 2^122572261 is an apocalyptic number.

It is an amenable number.

122572261 is a deficient number, since it is larger than the sum of its proper divisors (25750619).

122572261 is a wasteful number, since it uses less digits than its factorization.

122572261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1030043.

The product of its digits is 3360, while the sum is 28.

The square root of 122572261 is about 11071.2357485513. The cubic root of 122572261 is about 496.7418294327.

The spelling of 122572261 in words is "one hundred twenty-two million, five hundred seventy-two thousand, two hundred sixty-one".