1072734273 has 40 divisors (see below), whose sum is σ = 1785306600. Its totient is φ = 637362432.

The previous prime is 1072734269. The next prime is 1072734277. The reversal of 1072734273 is 3724372701.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1072734269) and next prime (1072734277).

It can be written as a sum of positive squares in 4 ways, for example, as 3640464 + 1069093809 = 1908^2 + 32697^2 .

It is not a de Polignac number, because 1072734273 - 2² = 1072734269 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1072734277) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 12973 + ... + 48101.

It is an arithmetic number, because the mean of its divisors is an integer number (44632665).

Almost surely, 2^1072734273 is an apocalyptic number.

1072734273 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1072734273 is a deficient number, since it is larger than the sum of its proper divisors (712572327).

1072734273 is a wasteful number, since it uses less digits than its factorization.

1072734273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35183 (or 35174 counting only the distinct ones).

The product of its (nonzero) digits is 49392, while the sum is 36.

The square root of 1072734273 is about 32752.6223835588. The cubic root of 1072734273 is about 1023.6796079282.

The spelling of 1072734273 in words is "one billion, seventy-two million, seven hundred thirty-four thousand, two hundred seventy-three".