1405131 has 16 divisors (see below), whose sum is σ = 2306304. Its totient is φ = 741024.

The previous prime is 1405127. The next prime is 1405133. The reversal of 1405131 is 1315041.

It is not a de Polignac number, because 1405131 - 2² = 1405127 is a prime.

It is a super-2 number, since 2×1405131² = 3948786254322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1405131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1405133) 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 15 ways as a sum of consecutive naturals, for example, 2301 + ... + 2846.

It is an arithmetic number, because the mean of its divisors is an integer number (144144).

2^1405131 is an apocalyptic number.

1405131 is a deficient number, since it is larger than the sum of its proper divisors (901173).

1405131 is a wasteful number, since it uses less digits than its factorization.

1405131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5170.

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 1405131 is about 1185.3822168398. The cubic root of 1405131 is about 112.0053940854.

The spelling of 1405131 in words is "one million, four hundred five thousand, one hundred thirty-one".