124032661 has 2 divisors, whose sum is σ = 124032662. Its totient is φ = 124032660.

The previous prime is 124032659. The next prime is 124032673. The reversal of 124032661 is 166230421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 116769636 + 7263025 = 10806^2 + 2695^2 .

It is a cyclic number.

It is not a de Polignac number, because 124032661 - 2¹ = 124032659 is a prime.

Together with 124032659, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (124032061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62016330 + 62016331.

It is an arithmetic number, because the mean of its divisors is an integer number (62016331).

Almost surely, 2^124032661 is an apocalyptic number.

It is an amenable number.

124032661 is a deficient number, since it is larger than the sum of its proper divisors (1).

124032661 is an equidigital number, since it uses as much as digits as its factorization.

124032661 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 124032661 is about 11136.9951512964. The cubic root of 124032661 is about 498.7068731959.

The spelling of 124032661 in words is "one hundred twenty-four million, thirty-two thousand, six hundred sixty-one".