1056251 has 4 divisors (see below), whose sum is σ = 1207152. Its totient is φ = 905352.

The previous prime is 1056247. The next prime is 1056269. The reversal of 1056251 is 1526501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1526501 = 313 ⋅4877.

It is not a de Polignac number, because 1056251 - 2² = 1056247 is a prime.

It is a super-2 number, since 2×1056251² = 2231332350002, 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 (1056241) 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, 75440 + ... + 75453.

It is an arithmetic number, because the mean of its divisors is an integer number (301788).

2^1056251 is an apocalyptic number.

1056251 is a deficient number, since it is larger than the sum of its proper divisors (150901).

1056251 is an equidigital number, since it uses as much as digits as its factorization.

1056251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150900.

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 1056251 is about 1027.7407260589. The cubic root of 1056251 is about 101.8409349515.

The spelling of 1056251 in words is "one million, fifty-six thousand, two hundred fifty-one".