1125815607 has 24 divisors (see below), whose sum is σ = 1956306560. Its totient is φ = 609463440.

The previous prime is 1125815591. The next prime is 1125815611. The reversal of 1125815607 is 7065185211.

1125815607 is a `hidden beast` number, since 1 + 12 + 5 + 81 + 560 + 7 = 666.

It is not a de Polignac number, because 1125815607 - 2⁴ = 1125815591 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1125815617) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 469069 + ... + 471462.

Almost surely, 2^1125815607 is an apocalyptic number.

1125815607 is a deficient number, since it is larger than the sum of its proper divisors (830490953).

1125815607 is a wasteful number, since it uses less digits than its factorization.

1125815607 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 940563 (or 940560 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 36.

The square root of 1125815607 is about 33553.1758109422. The cubic root of 1125815607 is about 1040.2931887268.

The spelling of 1125815607 in words is "one billion, one hundred twenty-five million, eight hundred fifteen thousand, six hundred seven".