124162721587 has 2 divisors, whose sum is σ = 124162721588. Its totient is φ = 124162721586.

The previous prime is 124162721549. The next prime is 124162721593. The reversal of 124162721587 is 785127261421.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-124162721587 is a prime.

It is not a weakly prime, because it can be changed into another prime (124162721597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62081360793 + 62081360794.

It is an arithmetic number, because the mean of its divisors is an integer number (62081360794).

Almost surely, 2^124162721587 is an apocalyptic number.

124162721587 is a deficient number, since it is larger than the sum of its proper divisors (1).

124162721587 is an equidigital number, since it uses as much as digits as its factorization.

124162721587 is an evil number, because the sum of its binary digits is even.

The product of its digits is 376320, while the sum is 46.

The spelling of 124162721587 in words is "one hundred twenty-four billion, one hundred sixty-two million, seven hundred twenty-one thousand, five hundred eighty-seven".