1072071172 has 6 divisors (see below), whose sum is σ = 1876124558. Its totient is φ = 536035584.

The previous prime is 1072071167. The next prime is 1072071191. The reversal of 1072071172 is 2711702701.

It can be written as a sum of positive squares in only one way, i.e., 651985156 + 420086016 = 25534^2 + 20496^2 .

It is a super-2 number, since 2×1072071172² = 2298673195666907168, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1072071172.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134008893 + ... + 134008900.

Almost surely, 2^1072071172 is an apocalyptic number.

It is an amenable number.

1072071172 is a deficient number, since it is larger than the sum of its proper divisors (804053386).

1072071172 is a wasteful number, since it uses less digits than its factorization.

1072071172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268017797 (or 268017795 counting only the distinct ones).

The product of its (nonzero) digits is 1372, while the sum is 28.

The square root of 1072071172 is about 32742.4979499121. The cubic root of 1072071172 is about 1023.4686383519.

Adding to 1072071172 its reverse (2711702701), we get a palindrome (3783773873).

The spelling of 1072071172 in words is "one billion, seventy-two million, seventy-one thousand, one hundred seventy-two".