1456756349 has 4 divisors (see below), whose sum is σ = 1460662236. Its totient is φ = 1452850464.

The previous prime is 1456756339. The next prime is 1456756351. The reversal of 1456756349 is 9436576541.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9436576541 = 7 ⋅1348082363.

It can be written as a sum of positive squares in 2 ways, for example, as 657563449 + 799192900 = 25643^2 + 28270^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1456756349 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1456756297 and 1456756306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1456756339) 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, 1952384 + ... + 1953129.

It is an arithmetic number, because the mean of its divisors is an integer number (365165559).

Almost surely, 2^1456756349 is an apocalyptic number.

It is an amenable number.

1456756349 is a deficient number, since it is larger than the sum of its proper divisors (3905887).

1456756349 is an equidigital number, since it uses as much as digits as its factorization.

1456756349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3905886.

The product of its digits is 2721600, while the sum is 50.

The square root of 1456756349 is about 38167.4776347612. The cubic root of 1456756349 is about 1133.6064453582.

The spelling of 1456756349 in words is "one billion, four hundred fifty-six million, seven hundred fifty-six thousand, three hundred forty-nine".