1387124 has 12 divisors (see below), whose sum is σ = 2435748. Its totient is φ = 691200.

The previous prime is 1387123. The next prime is 1387129. The reversal of 1387124 is 4217831.

It can be written as a sum of positive squares in 2 ways, for example, as 940900 + 446224 = 970^2 + 668^2 .

It is a super-2 number, since 2×1387124² = 3848225982752, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1387093 and 1387102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1387121) 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, 1844 + ... + 2484.

It is an arithmetic number, because the mean of its divisors is an integer number (202979).

2^1387124 is an apocalyptic number.

It is an amenable number.

1387124 is a deficient number, since it is larger than the sum of its proper divisors (1048624).

1387124 is a wasteful number, since it uses less digits than its factorization.

1387124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1186 (or 1184 counting only the distinct ones).

The product of its digits is 1344, while the sum is 26.

The square root of 1387124 is about 1177.7622850134. The cubic root of 1387124 is about 111.5248793242.

The spelling of 1387124 in words is "one million, three hundred eighty-seven thousand, one hundred twenty-four".