124989851 has 8 divisors (see below), whose sum is σ = 143937024. Its totient is φ = 106315560.

The previous prime is 124989841. The next prime is 124989857. The reversal of 124989851 is 158989421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-124989851 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 124989796 and 124989805.

It is not an unprimeable number, because it can be changed into a prime (124989857) 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, 67235 + ... + 69068.

It is an arithmetic number, because the mean of its divisors is an integer number (17992128).

Almost surely, 2^124989851 is an apocalyptic number.

124989851 is a deficient number, since it is larger than the sum of its proper divisors (18947173).

124989851 is a wasteful number, since it uses less digits than its factorization.

124989851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136441.

The product of its digits is 207360, while the sum is 47.

The square root of 124989851 is about 11179.8860012077. The cubic root of 124989851 is about 499.9864676338.

The spelling of 124989851 in words is "one hundred twenty-four million, nine hundred eighty-nine thousand, eight hundred fifty-one".