124998749 has 2 divisors, whose sum is σ = 124998750. Its totient is φ = 124998748.

The previous prime is 124998737. The next prime is 124998761. The reversal of 124998749 is 947899421.

It is a balanced prime because it is at equal distance from previous prime (124998737) and next prime (124998761).

It can be written as a sum of positive squares in only one way, i.e., 113316025 + 11682724 = 10645^2 + 3418^2 .

It is a cyclic number.

It is not a de Polignac number, because 124998749 - 2⁴ = 124998733 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 124998749.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (124998719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62499374 + 62499375.

It is an arithmetic number, because the mean of its divisors is an integer number (62499375).

Almost surely, 2^124998749 is an apocalyptic number.

It is an amenable number.

124998749 is a deficient number, since it is larger than the sum of its proper divisors (1).

124998749 is an equidigital number, since it uses as much as digits as its factorization.

124998749 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1306368, while the sum is 53.

The square root of 124998749 is about 11180.2839409382. The cubic root of 124998749 is about 499.9983319944.

The spelling of 124998749 in words is "one hundred twenty-four million, nine hundred ninety-eight thousand, seven hundred forty-nine".