1072125647 has 2 divisors, whose sum is σ = 1072125648. Its totient is φ = 1072125646.

The previous prime is 1072125643. The next prime is 1072125709. The reversal of 1072125647 is 7465212701.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1072125647 - 2² = 1072125643 is a prime.

It is a super-2 number, since 2×1072125647² = 2298906805910337218, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1072125641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 536062823 + 536062824.

It is an arithmetic number, because the mean of its divisors is an integer number (536062824).

Almost surely, 2^1072125647 is an apocalyptic number.

1072125647 is a deficient number, since it is larger than the sum of its proper divisors (1).

1072125647 is an equidigital number, since it uses as much as digits as its factorization.

1072125647 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23520, while the sum is 35.

The square root of 1072125647 is about 32743.3298092909. The cubic root of 1072125647 is about 1023.4859731805.

The spelling of 1072125647 in words is "one billion, seventy-two million, one hundred twenty-five thousand, six hundred forty-seven".