124989601 has 4 divisors (see below), whose sum is σ = 136352304. Its totient is φ = 113626900.

The previous prime is 124989587. The next prime is 124989611. The reversal of 124989601 is 106989421.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 124989601 - 2¹⁵ = 124956833 is a prime.

It is not an unprimeable number, because it can be changed into a prime (124989611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5681335 + ... + 5681356.

It is an arithmetic number, because the mean of its divisors is an integer number (34088076).

Almost surely, 2^124989601 is an apocalyptic number.

124989601 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

124989601 is a deficient number, since it is larger than the sum of its proper divisors (11362703).

124989601 is a wasteful number, since it uses less digits than its factorization.

124989601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11362702.

The product of its (nonzero) digits is 31104, while the sum is 40.

The square root of 124989601 is about 11179.8748204083. The cubic root of 124989601 is about 499.9861342822.

The spelling of 124989601 in words is "one hundred twenty-four million, nine hundred eighty-nine thousand, six hundred one".