124212045 has 16 divisors (see below), whose sum is σ = 199210752. Its totient is φ = 66089280.

The previous prime is 124212041. The next prime is 124212061. The reversal of 124212045 is 540212421.

It is not a de Polignac number, because 124212045 - 2² = 124212041 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124212041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3142 + ... + 16071.

It is an arithmetic number, because the mean of its divisors is an integer number (12450672).

Almost surely, 2^124212045 is an apocalyptic number.

124212045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

124212045 is a deficient number, since it is larger than the sum of its proper divisors (74998707).

124212045 is a wasteful number, since it uses less digits than its factorization.

124212045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19652.

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 124212045 is about 11145.0457603367. The cubic root of 124212045 is about 498.9471780211.

Adding to 124212045 its reverse (540212421), we get a palindrome (664424466).

The spelling of 124212045 in words is "one hundred twenty-four million, two hundred twelve thousand, forty-five".