1073709531 has 12 divisors (see below), whose sum is σ = 1562073240. Its totient is φ = 710655840.

The previous prime is 1073709493. The next prime is 1073709577. The reversal of 1073709531 is 1359073701.

It is not a de Polignac number, because 1073709531 - 2¹⁰ = 1073708507 is a prime.

It is a super-2 number, since 2×1073709531² = 2305704313920479922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1073709731) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 427890 + ... + 430391.

It is an arithmetic number, because the mean of its divisors is an integer number (130172770).

Almost surely, 2^1073709531 is an apocalyptic number.

1073709531 is a deficient number, since it is larger than the sum of its proper divisors (488363709).

1073709531 is a wasteful number, since it uses less digits than its factorization.

1073709531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 858426 (or 858423 counting only the distinct ones).

The product of its (nonzero) digits is 19845, while the sum is 36.

The square root of 1073709531 is about 32767.5072442198. The cubic root of 1073709531 is about 1023.9897342289.

The spelling of 1073709531 in words is "one billion, seventy-three million, seven hundred nine thousand, five hundred thirty-one".