1072123671 has 4 divisors (see below), whose sum is σ = 1429498232. Its totient is φ = 714749112.

The previous prime is 1072123669. The next prime is 1072123693. The reversal of 1072123671 is 1763212701.

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

It is not a de Polignac number, because 1072123671 - 2¹ = 1072123669 is a prime.

It is a super-2 number, since 2×1072123671² = 2298898331837032482, 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 (1072123271) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 178687276 + ... + 178687281.

It is an arithmetic number, because the mean of its divisors is an integer number (357374558).

Almost surely, 2^1072123671 is an apocalyptic number.

1072123671 is a deficient number, since it is larger than the sum of its proper divisors (357374561).

1072123671 is an equidigital number, since it uses as much as digits as its factorization.

1072123671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357374560.

The product of its (nonzero) digits is 3528, while the sum is 30.

The square root of 1072123671 is about 32743.2996351925. The cubic root of 1072123671 is about 1023.4853443955.

The spelling of 1072123671 in words is "one billion, seventy-two million, one hundred twenty-three thousand, six hundred seventy-one".