124387381 has 8 divisors (see below), whose sum is σ = 129911040. Its totient is φ = 118873392.

The previous prime is 124387339. The next prime is 124387387. The reversal of 124387381 is 183783421.

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 124387381 - 2¹¹ = 124385333 is a prime.

It is a super-2 number, since 2×124387381² = 30944441104078322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 124387381.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124387387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39636 + ... + 42658.

It is an arithmetic number, because the mean of its divisors is an integer number (16238880).

Almost surely, 2^124387381 is an apocalyptic number.

It is an amenable number.

124387381 is a deficient number, since it is larger than the sum of its proper divisors (5523659).

124387381 is a wasteful number, since it uses less digits than its factorization.

124387381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4835.

The product of its digits is 32256, while the sum is 37.

The square root of 124387381 is about 11152.9090823874. The cubic root of 124387381 is about 499.1818366142.

The spelling of 124387381 in words is "one hundred twenty-four million, three hundred eighty-seven thousand, three hundred eighty-one".