1207165887 has 12 divisors (see below), whose sum is σ = 1767571104. Its totient is φ = 793752480.

The previous prime is 1207165859. The next prime is 1207165913. The reversal of 1207165887 is 7885617021.

It is a happy number.

It is not a de Polignac number, because 1207165887 - 2¹⁸ = 1206903743 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1207165807) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 918039 + ... + 919352.

It is an arithmetic number, because the mean of its divisors is an integer number (147297592).

Almost surely, 2^1207165887 is an apocalyptic number.

1207165887 is a deficient number, since it is larger than the sum of its proper divisors (560405217).

1207165887 is a wasteful number, since it uses less digits than its factorization.

1207165887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1837470 (or 1837467 counting only the distinct ones).

The product of its (nonzero) digits is 188160, while the sum is 45.

The square root of 1207165887 is about 34744.2928694771. The cubic root of 1207165887 is about 1064.7696202071.

The spelling of 1207165887 in words is "one billion, two hundred seven million, one hundred sixty-five thousand, eight hundred eighty-seven".