124985749 has 16 divisors (see below), whose sum is σ = 149909760. Its totient is φ = 101882880.

The previous prime is 124985723. The next prime is 124985759. The reversal of 124985749 is 947589421.

It is a cyclic number.

It is not a de Polignac number, because 124985749 - 2¹¹ = 124983701 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124985759) 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, 26997 + ... + 31285.

It is an arithmetic number, because the mean of its divisors is an integer number (9369360).

Almost surely, 2^124985749 is an apocalyptic number.

It is an amenable number.

124985749 is a deficient number, since it is larger than the sum of its proper divisors (24924011).

124985749 is a wasteful number, since it uses less digits than its factorization.

124985749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4500.

The product of its digits is 725760, while the sum is 49.

The square root of 124985749 is about 11179.7025452380. The cubic root of 124985749 is about 499.9809979445.

The spelling of 124985749 in words is "one hundred twenty-four million, nine hundred eighty-five thousand, seven hundred forty-nine".