1072243511 has 4 divisors (see below), whose sum is σ = 1128677400. Its totient is φ = 1015809624.

The previous prime is 1072243507. The next prime is 1072243517. The reversal of 1072243511 is 1153422701.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1072243511 - 2² = 1072243507 is a prime.

It is a super-2 number, since 2×1072243511² = 2299412293763214242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1072243517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28216916 + ... + 28216953.

It is an arithmetic number, because the mean of its divisors is an integer number (282169350).

Almost surely, 2^1072243511 is an apocalyptic number.

1072243511 is a deficient number, since it is larger than the sum of its proper divisors (56433889).

1072243511 is an equidigital number, since it uses as much as digits as its factorization.

1072243511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56433888.

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 1072243511 is about 32745.1295767783. The cubic root of 1072243511 is about 1023.5234774073.

The spelling of 1072243511 in words is "one billion, seventy-two million, two hundred forty-three thousand, five hundred eleven".