122156455 has 16 divisors (see below), whose sum is σ = 148898880. Its totient is φ = 96196608.

The previous prime is 122156449. The next prime is 122156479. The reversal of 122156455 is 554651221.

It is a cyclic number.

It is not a de Polignac number, because 122156455 - 2¹¹ = 122154407 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 98781 + ... + 100009.

It is an arithmetic number, because the mean of its divisors is an integer number (9306180).

Almost surely, 2^122156455 is an apocalyptic number.

122156455 is a deficient number, since it is larger than the sum of its proper divisors (26742425).

122156455 is a wasteful number, since it uses less digits than its factorization.

122156455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1530.

The product of its digits is 12000, while the sum is 31.

The square root of 122156455 is about 11052.4411330710. The cubic root of 122156455 is about 496.1794884028.

The spelling of 122156455 in words is "one hundred twenty-two million, one hundred fifty-six thousand, four hundred fifty-five".