1365131 has 4 divisors (see below), whose sum is σ = 1437000. Its totient is φ = 1293264.

The previous prime is 1365127. The next prime is 1365137. The reversal of 1365131 is 1315631.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1315631 = 353 ⋅3727.

It is a cyclic number.

It is not a de Polignac number, because 1365131 - 2² = 1365127 is a prime.

It is a super-2 number, since 2×1365131² = 3727165294322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1365137) 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, 35906 + ... + 35943.

It is an arithmetic number, because the mean of its divisors is an integer number (359250).

2^1365131 is an apocalyptic number.

1365131 is a deficient number, since it is larger than the sum of its proper divisors (71869).

1365131 is an equidigital number, since it uses as much as digits as its factorization.

1365131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71868.

The product of its digits is 270, while the sum is 20.

The square root of 1365131 is about 1168.3882060343. The cubic root of 1365131 is about 110.9323235434.

The spelling of 1365131 in words is "one million, three hundred sixty-five thousand, one hundred thirty-one".