122961749 has 16 divisors (see below), whose sum is σ = 137635200. Its totient is φ = 109302336.

The previous prime is 122961739. The next prime is 122961869. The reversal of 122961749 is 947169221.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122961749 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122961739) 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, 20507 + ... + 25815.

It is an arithmetic number, because the mean of its divisors is an integer number (8602200).

Almost surely, 2^122961749 is an apocalyptic number.

122961749 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

122961749 is a deficient number, since it is larger than the sum of its proper divisors (14673451).

122961749 is a wasteful number, since it uses less digits than its factorization.

122961749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5404.

The product of its digits is 54432, while the sum is 41.

The square root of 122961749 is about 11088.8118840568. The cubic root of 122961749 is about 497.2674252761.

The spelling of 122961749 in words is "one hundred twenty-two million, nine hundred sixty-one thousand, seven hundred forty-nine".