124051681 has 8 divisors (see below), whose sum is σ = 133686504. Its totient is φ = 114430080.

The previous prime is 124051679. The next prime is 124051687. The reversal of 124051681 is 186150421.

It can be written as a sum of positive squares in 4 ways, for example, as 37933281 + 86118400 = 6159^2 + 9280^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 124051681 - 2¹ = 124051679 is a prime.

It is a super-2 number, since 2×124051681² = 30777639117851522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (124051687) 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 7 ways as a sum of consecutive naturals, for example, 25605 + ... + 30061.

It is an arithmetic number, because the mean of its divisors is an integer number (16710813).

Almost surely, 2^124051681 is an apocalyptic number.

It is an amenable number.

124051681 is a deficient number, since it is larger than the sum of its proper divisors (9634823).

124051681 is a wasteful number, since it uses less digits than its factorization.

124051681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6611.

The product of its (nonzero) digits is 1920, while the sum is 28.

The square root of 124051681 is about 11137.8490293234. The cubic root of 124051681 is about 498.7323635784.

The spelling of 124051681 in words is "one hundred twenty-four million, fifty-one thousand, six hundred eighty-one".