1492591 has 4 divisors (see below), whose sum is σ = 1501912. Its totient is φ = 1483272.

The previous prime is 1492577. The next prime is 1492597. The reversal of 1492591 is 1952941.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1952941 = 1193 ⋅1637.

It is a cyclic number.

It is not a de Polignac number, because 1492591 - 2¹⁵ = 1459823 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1492597) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4416 + ... + 4741.

It is an arithmetic number, because the mean of its divisors is an integer number (375478).

2^1492591 is an apocalyptic number.

1492591 is a deficient number, since it is larger than the sum of its proper divisors (9321).

1492591 is an equidigital number, since it uses as much as digits as its factorization.

1492591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9320.

The product of its digits is 3240, while the sum is 31.

The square root of 1492591 is about 1221.7164155400. The cubic root of 1492591 is about 114.2826422537.

The spelling of 1492591 in words is "one million, four hundred ninety-two thousand, five hundred ninety-one".