124285661 has 2 divisors, whose sum is σ = 124285662. Its totient is φ = 124285660.

The previous prime is 124285643. The next prime is 124285673. The reversal of 124285661 is 166582421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 106729561 + 17556100 = 10331^2 + 4190^2 .

It is an emirp because it is prime and its reverse (166582421) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 124285661 - 2⁶ = 124285597 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (124285361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62142830 + 62142831.

It is an arithmetic number, because the mean of its divisors is an integer number (62142831).

Almost surely, 2^124285661 is an apocalyptic number.

It is an amenable number.

124285661 is a deficient number, since it is larger than the sum of its proper divisors (1).

124285661 is an equidigital number, since it uses as much as digits as its factorization.

124285661 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23040, while the sum is 35.

The square root of 124285661 is about 11148.3479045103. The cubic root of 124285661 is about 499.0457278881.

The spelling of 124285661 in words is "one hundred twenty-four million, two hundred eighty-five thousand, six hundred sixty-one".