122663749 has 12 divisors (see below), whose sum is σ = 135660096. Its totient is φ = 110811792.

The previous prime is 122663699. The next prime is 122663797. The reversal of 122663749 is 947366221.

It is a happy number.

It is not a de Polignac number, because 122663749 - 2¹⁹ = 122139461 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122664749) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 222 + ... + 15664.

It is an arithmetic number, because the mean of its divisors is an integer number (11305008).

Almost surely, 2^122663749 is an apocalyptic number.

It is an amenable number.

122663749 is a deficient number, since it is larger than the sum of its proper divisors (12996347).

122663749 is a wasteful number, since it uses less digits than its factorization.

122663749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15516 (or 15503 counting only the distinct ones).

The product of its digits is 108864, while the sum is 40.

The square root of 122663749 is about 11075.3667659360. The cubic root of 122663749 is about 496.8653881505.

The spelling of 122663749 in words is "one hundred twenty-two million, six hundred sixty-three thousand, seven hundred forty-nine".