1572261 has 4 divisors (see below), whose sum is σ = 2096352. Its totient is φ = 1048172.

The previous prime is 1572253. The next prime is 1572271. The reversal of 1572261 is 1622751.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1572261 - 2³ = 1572253 is a prime.

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1572251) 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, 262041 + ... + 262046.

It is an arithmetic number, because the mean of its divisors is an integer number (524088).

2^1572261 is an apocalyptic number.

It is an amenable number.

1572261 is a deficient number, since it is larger than the sum of its proper divisors (524091).

1572261 is an equidigital number, since it uses as much as digits as its factorization.

1572261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 524090.

The product of its digits is 840, while the sum is 24.

The square root of 1572261 is about 1253.8983212366. The cubic root of 1572261 is about 116.2808543376.

The spelling of 1572261 in words is "one million, five hundred seventy-two thousand, two hundred sixty-one".