1571361 has 16 divisors (see below), whose sum is σ = 2420928. Its totient is φ = 896000.

The previous prime is 1571329. The next prime is 1571363. The reversal of 1571361 is 1631751.

It is a 3-Lehmer number, since φ(1571361) divides (1571361-1)³.

It is a cyclic number.

It is not a de Polignac number, because 1571361 - 2⁵ = 1571329 is a prime.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1571363) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 840 + ... + 1961.

It is an arithmetic number, because the mean of its divisors is an integer number (151308).

2^1571361 is an apocalyptic number.

1571361 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1571361 is a deficient number, since it is larger than the sum of its proper divisors (849567).

1571361 is a wasteful number, since it uses less digits than its factorization.

1571361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2832.

The product of its digits is 630, while the sum is 24.

The square root of 1571361 is about 1253.5393890899. The cubic root of 1571361 is about 116.2586627837.

The spelling of 1571361 in words is "one million, five hundred seventy-one thousand, three hundred sixty-one".