1572143 has 4 divisors (see below), whose sum is σ = 1664640. Its totient is φ = 1479648.

The previous prime is 1572113. The next prime is 1572149. The reversal of 1572143 is 3412751.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1572143 - 2¹⁴ = 1555759 is a prime.

It is a super-2 number, since 2×1572143² = 4943267224898, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1572149) 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, 46223 + ... + 46256.

It is an arithmetic number, because the mean of its divisors is an integer number (416160).

2^1572143 is an apocalyptic number.

1572143 is a deficient number, since it is larger than the sum of its proper divisors (92497).

1572143 is an equidigital number, since it uses as much as digits as its factorization.

1572143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92496.

The product of its digits is 840, while the sum is 23.

The square root of 1572143 is about 1253.8512670967. The cubic root of 1572143 is about 116.2779452608.

Adding to 1572143 its reverse (3412751), we get a palindrome (4984894).

The spelling of 1572143 in words is "one million, five hundred seventy-two thousand, one hundred forty-three".