1047165801 has 16 divisors (see below), whose sum is σ = 1544018880. Its totient is φ = 625950720.

The previous prime is 1047165773. The next prime is 1047165803. The reversal of 1047165801 is 1085617401.

It is a happy number.

It is not a de Polignac number, because 1047165801 - 2¹⁰ = 1047164777 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (1047165803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 214936 + ... + 219753.

It is an arithmetic number, because the mean of its divisors is an integer number (96501180).

Almost surely, 2^1047165801 is an apocalyptic number.

1047165801 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1047165801 is a deficient number, since it is larger than the sum of its proper divisors (496853079).

1047165801 is a wasteful number, since it uses less digits than its factorization.

1047165801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434776.

The product of its (nonzero) digits is 6720, while the sum is 33.

The square root of 1047165801 is about 32359.9413009356. The cubic root of 1047165801 is about 1015.4810344968.

The spelling of 1047165801 in words is "one billion, forty-seven million, one hundred sixty-five thousand, eight hundred one".