1379131 has 4 divisors (see below), whose sum is σ = 1485232. Its totient is φ = 1273032.

The previous prime is 1379129. The next prime is 1379137. The reversal of 1379131 is 1319731.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1319731 = 7 ⋅188533.

It is a cyclic number.

It is not a de Polignac number, because 1379131 - 2¹ = 1379129 is a prime.

It is a super-2 number, since 2×1379131² = 3804004630322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1379096 and 1379105.

It is not an unprimeable number, because it can be changed into a prime (1379137) 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 3 ways as a sum of consecutive naturals, for example, 53031 + ... + 53056.

It is an arithmetic number, because the mean of its divisors is an integer number (371308).

2^1379131 is an apocalyptic number.

1379131 is a deficient number, since it is larger than the sum of its proper divisors (106101).

1379131 is a wasteful number, since it uses less digits than its factorization.

1379131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106100.

The product of its digits is 567, while the sum is 25.

The square root of 1379131 is about 1174.3640832382. The cubic root of 1379131 is about 111.3102539400.

The spelling of 1379131 in words is "one million, three hundred seventy-nine thousand, one hundred thirty-one".