124040136 has 32 divisors (see below), whose sum is σ = 338292000. Its totient is φ = 37587840.

The previous prime is 124040131. The next prime is 124040141. The reversal of 124040136 is 631040421.

It is an interprime number because it is at equal distance from previous prime (124040131) and next prime (124040141).

It is not an unprimeable number, because it can be changed into a prime (124040131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 234661 + ... + 235188.

It is an arithmetic number, because the mean of its divisors is an integer number (10571625).

Almost surely, 2^124040136 is an apocalyptic number.

It is an amenable number.

124040136 is an abundant number, since it is smaller than the sum of its proper divisors (214251864).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

124040136 is a wasteful number, since it uses less digits than its factorization.

124040136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 469869 (or 469865 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 124040136 is about 11137.3307394546. The cubic root of 124040136 is about 498.7168914147.

Adding to 124040136 its reverse (631040421), we get a palindrome (755080557).

The spelling of 124040136 in words is "one hundred twenty-four million, forty thousand, one hundred thirty-six".