1072733731 has 8 divisors (see below), whose sum is σ = 1119788064. Its totient is φ = 1025713920.

The previous prime is 1072733723. The next prime is 1072733791. The reversal of 1072733731 is 1373372701.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1072733731 - 2³ = 1072733723 is a prime.

It is a super-2 number, since 2×1072733731² = 2301515315250360722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1072733791) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70365 + ... + 84241.

It is an arithmetic number, because the mean of its divisors is an integer number (139973508).

Almost surely, 2^1072733731 is an apocalyptic number.

1072733731 is a deficient number, since it is larger than the sum of its proper divisors (47054333).

1072733731 is a wasteful number, since it uses less digits than its factorization.

1072733731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17261.

The product of its (nonzero) digits is 18522, while the sum is 34.

The square root of 1072733731 is about 32752.6141094112. The cubic root of 1072733731 is about 1023.6794355231.

The spelling of 1072733731 in words is "one billion, seventy-two million, seven hundred thirty-three thousand, seven hundred thirty-one".