1073228731 has 2 divisors, whose sum is σ = 1073228732. Its totient is φ = 1073228730.

The previous prime is 1073228707. The next prime is 1073228861. The reversal of 1073228731 is 1378223701.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1073228731 - 2²⁵ = 1039674299 is a prime.

It is a super-2 number, since 2×1073228731² = 2303639818087740722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1073228131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 536614365 + 536614366.

It is an arithmetic number, because the mean of its divisors is an integer number (536614366).

Almost surely, 2^1073228731 is an apocalyptic number.

1073228731 is a deficient number, since it is larger than the sum of its proper divisors (1).

1073228731 is an equidigital number, since it uses as much as digits as its factorization.

1073228731 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14112, while the sum is 34.

The square root of 1073228731 is about 32760.1698866169. The cubic root of 1073228731 is about 1023.8368661404.

The spelling of 1073228731 in words is "one billion, seventy-three million, two hundred twenty-eight thousand, seven hundred thirty-one".