122739545 has 16 divisors (see below), whose sum is σ = 151683840. Its totient is φ = 95275584.

The previous prime is 122739517. The next prime is 122739553. The reversal of 122739545 is 545937221.

It is a cyclic number.

It is not a de Polignac number, because 122739545 - 2⁶ = 122739481 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 122739499 and 122739508.

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, 92396 + ... + 93714.

It is an arithmetic number, because the mean of its divisors is an integer number (9480240).

Almost surely, 2^122739545 is an apocalyptic number.

It is an amenable number.

122739545 is a deficient number, since it is larger than the sum of its proper divisors (28944295).

122739545 is a wasteful number, since it uses less digits than its factorization.

122739545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1864.

The product of its digits is 75600, while the sum is 38.

The square root of 122739545 is about 11078.7880654880. The cubic root of 122739545 is about 496.9677075805.

The spelling of 122739545 in words is "one hundred twenty-two million, seven hundred thirty-nine thousand, five hundred forty-five".