1072157168 has 20 divisors (see below), whose sum is σ = 2082885288. Its totient is φ = 534638400.

The previous prime is 1072157159. The next prime is 1072157171. The reversal of 1072157168 is 8617512701.

It is a happy number.

It is a super-2 number, since 2×1072157168² = 2299041985787560448, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83858 + ... + 95793.

Almost surely, 2^1072157168 is an apocalyptic number.

It is an amenable number.

1072157168 is a deficient number, since it is larger than the sum of its proper divisors (1010728120).

1072157168 is a wasteful number, since it uses less digits than its factorization.

1072157168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180032 (or 180026 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 38.

The square root of 1072157168 is about 32743.8111404277. The cubic root of 1072157168 is about 1023.4960034057.

Adding to 1072157168 its reverse (8617512701), we get a palindrome (9689669869).

The spelling of 1072157168 in words is "one billion, seventy-two million, one hundred fifty-seven thousand, one hundred sixty-eight".