124724261 has 2 divisors, whose sum is σ = 124724262. Its totient is φ = 124724260.

The previous prime is 124724221. The next prime is 124724263. The reversal of 124724261 is 162427421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 116424100 + 8300161 = 10790^2 + 2881^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-124724261 is a prime.

It is a super-2 number, since 2×124724261² = 31112282563992242, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 124724263, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is equal to p_7095332 and since 124724261 and 7095332 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (124724263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62362130 + 62362131.

It is an arithmetic number, because the mean of its divisors is an integer number (62362131).

Almost surely, 2^124724261 is an apocalyptic number.

It is an amenable number.

124724261 is a deficient number, since it is larger than the sum of its proper divisors (1).

124724261 is an equidigital number, since it uses as much as digits as its factorization.

124724261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5376, while the sum is 29.

The square root of 124724261 is about 11168.0016565185. The cubic root of 124724261 is about 499.6320773322.

The spelling of 124724261 in words is "one hundred twenty-four million, seven hundred twenty-four thousand, two hundred sixty-one".