1056749 has 4 divisors (see below), whose sum is σ = 1074720. Its totient is φ = 1038780.

The previous prime is 1056739. The next prime is 1056773. The reversal of 1056749 is 9476501.

1056749 = T₁₅₉ + T₁₆₀ + ... + T₂₁₇.

It is a happy number.

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 1056749 - 2⁸ = 1056493 is a prime.

It is a super-2 number, since 2×1056749² = 2233436898002, which contains 22 as substring.

It is an Ulam number.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1056719) 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, 8897 + ... + 9014.

It is an arithmetic number, because the mean of its divisors is an integer number (268680).

2^1056749 is an apocalyptic number.

It is an amenable number.

1056749 is a deficient number, since it is larger than the sum of its proper divisors (17971).

1056749 is an equidigital number, since it uses as much as digits as its factorization.

1056749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17970.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 1056749 is about 1027.9829765127. The cubic root of 1056749 is about 101.8569377189.

It can be divided in two parts, 105 and 6749, that multiplied together give a triangular number (708645 = T₁₁₉₀).

The spelling of 1056749 in words is "one million, fifty-six thousand, seven hundred forty-nine".