124371381 has 4 divisors (see below), whose sum is σ = 165828512. Its totient is φ = 82914252.

The previous prime is 124371361. The next prime is 124371383. The reversal of 124371381 is 183173421.

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 not a de Polignac number, because 124371381 - 2¹⁷ = 124240309 is a prime.

It is a super-2 number, since 2×124371381² = 30936480823694322, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124371383) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20728561 + ... + 20728566.

It is an arithmetic number, because the mean of its divisors is an integer number (41457128).

Almost surely, 2^124371381 is an apocalyptic number.

It is an amenable number.

124371381 is a deficient number, since it is larger than the sum of its proper divisors (41457131).

124371381 is an equidigital number, since it uses as much as digits as its factorization.

124371381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41457130.

The product of its digits is 4032, while the sum is 30.

The square root of 124371381 is about 11152.1917576771. The cubic root of 124371381 is about 499.1604323748.

The spelling of 124371381 in words is "one hundred twenty-four million, three hundred seventy-one thousand, three hundred eighty-one".