124704691 has 2 divisors, whose sum is σ = 124704692. Its totient is φ = 124704690.

The previous prime is 124704647. The next prime is 124704719. The reversal of 124704691 is 196407421.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 124704691 - 2⁷ = 124704563 is a prime.

It is not a weakly prime, because it can be changed into another prime (124704631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62352345 + 62352346.

It is an arithmetic number, because the mean of its divisors is an integer number (62352346).

Almost surely, 2^124704691 is an apocalyptic number.

124704691 is a deficient number, since it is larger than the sum of its proper divisors (1).

124704691 is an equidigital number, since it uses as much as digits as its factorization.

124704691 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 124704691 is about 11167.1254582368. The cubic root of 124704691 is about 499.6059441883.

It can be divided in two parts, 12470 and 4691, that added together give a square (17161 = 131²).

The spelling of 124704691 in words is "one hundred twenty-four million, seven hundred four thousand, six hundred ninety-one".