1125156647 has 2 divisors, whose sum is σ = 1125156648. Its totient is φ = 1125156646.

The previous prime is 1125156623. The next prime is 1125156673. The reversal of 1125156647 is 7466515211.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1125156647 - 2⁶ = 1125156583 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1125156647.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1125156047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 562578323 + 562578324.

It is an arithmetic number, because the mean of its divisors is an integer number (562578324).

Almost surely, 2^1125156647 is an apocalyptic number.

1125156647 is a deficient number, since it is larger than the sum of its proper divisors (1).

1125156647 is an equidigital number, since it uses as much as digits as its factorization.

1125156647 is an evil number, because the sum of its binary digits is even.

The product of its digits is 50400, while the sum is 38.

The square root of 1125156647 is about 33543.3547368178. The cubic root of 1125156647 is about 1040.0901817139.

The spelling of 1125156647 in words is "one billion, one hundred twenty-five million, one hundred fifty-six thousand, six hundred forty-seven".