1481591 has 8 divisors (see below), whose sum is σ = 1588704. Its totient is φ = 1378080.

The previous prime is 1481573. The next prime is 1481603. The reversal of 1481591 is 1951841.

1481591 = 56² + 57² + ... + 166².

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1481591 - 2⁶ = 1481527 is a prime.

It is a super-2 number, since 2×1481591² = 4390223782562, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1481551) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20 + ... + 1721.

It is an arithmetic number, because the mean of its divisors is an integer number (198588).

2^1481591 is an apocalyptic number.

1481591 is a deficient number, since it is larger than the sum of its proper divisors (107113).

1481591 is a wasteful number, since it uses less digits than its factorization.

1481591 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1801.

The product of its digits is 1440, while the sum is 29.

The square root of 1481591 is about 1217.2062273912. The cubic root of 1481591 is about 114.0012054864.

The spelling of 1481591 in words is "one million, four hundred eighty-one thousand, five hundred ninety-one".