124939697 has 4 divisors (see below), whose sum is σ = 124981620. Its totient is φ = 124897776.

The previous prime is 124939643. The next prime is 124939729. The reversal of 124939697 is 796939421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 796939421 = 751 ⋅1061171.

It can be written as a sum of positive squares in 2 ways, for example, as 74373376 + 50566321 = 8624^2 + 7111^2 .

It is a cyclic number.

It is not a de Polignac number, because 124939697 - 2¹⁰ = 124938673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (124939097) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16118 + ... + 22575.

It is an arithmetic number, because the mean of its divisors is an integer number (31245405).

Almost surely, 2^124939697 is an apocalyptic number.

It is an amenable number.

124939697 is a deficient number, since it is larger than the sum of its proper divisors (41923).

124939697 is an equidigital number, since it uses as much as digits as its factorization.

124939697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41922.

The product of its digits is 734832, while the sum is 50.

The square root of 124939697 is about 11177.6427300214. The cubic root of 124939697 is about 499.9195830669.

The spelling of 124939697 in words is "one hundred twenty-four million, nine hundred thirty-nine thousand, six hundred ninety-seven".