124245157 has 4 divisors (see below), whose sum is σ = 125641260. Its totient is φ = 122849056.

The previous prime is 124245139. The next prime is 124245167. The reversal of 124245157 is 751542421.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 30813601 + 93431556 = 5551^2 + 9666^2 .

It is a cyclic number.

It is not a de Polignac number, because 124245157 - 2¹⁹ = 123720869 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124245137) 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, 697918 + ... + 698095.

It is an arithmetic number, because the mean of its divisors is an integer number (31410315).

Almost surely, 2^124245157 is an apocalyptic number.

It is an amenable number.

124245157 is a deficient number, since it is larger than the sum of its proper divisors (1396103).

124245157 is an equidigital number, since it uses as much as digits as its factorization.

124245157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1396102.

The product of its digits is 11200, while the sum is 31.

The square root of 124245157 is about 11146.5311644475. The cubic root of 124245157 is about 498.9915099298.

Adding to 124245157 its reverse (751542421), we get a palindrome (875787578).

The spelling of 124245157 in words is "one hundred twenty-four million, two hundred forty-five thousand, one hundred fifty-seven".