124742145 has 32 divisors (see below), whose sum is σ = 218824704. Its totient is φ = 60177600.

The previous prime is 124742143. The next prime is 124742147. The reversal of 124742145 is 541247421.

It is an interprime number because it is at equal distance from previous prime (124742143) and next prime (124742147).

It is not a de Polignac number, because 124742145 - 2¹ = 124742143 is a prime.

It is not an unprimeable number, because it can be changed into a prime (124742143) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 33024 + ... + 36606.

It is an arithmetic number, because the mean of its divisors is an integer number (6838272).

Almost surely, 2^124742145 is an apocalyptic number.

124742145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

124742145 is a deficient number, since it is larger than the sum of its proper divisors (94082559).

124742145 is a wasteful number, since it uses less digits than its factorization.

124742145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3813.

The product of its digits is 8960, while the sum is 30.

The square root of 124742145 is about 11168.8023082155. The cubic root of 124742145 is about 499.6559566560.

Adding to 124742145 its reverse (541247421), we get a palindrome (665989566).

The spelling of 124742145 in words is "one hundred twenty-four million, seven hundred forty-two thousand, one hundred forty-five".