1040785101 has 24 divisors (see below), whose sum is σ = 1593014904. Its totient is φ = 652538880.

The previous prime is 1040785093. The next prime is 1040785139. The reversal of 1040785101 is 1015870401.

It can be written as a sum of positive squares in 4 ways, for example, as 64160100 + 976625001 = 8010^2 + 31251^2 .

It is not a de Polignac number, because 1040785101 - 2³ = 1040785093 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1040785171) 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, 362865 + ... + 365721.

It is an arithmetic number, because the mean of its divisors is an integer number (66375621).

Almost surely, 2^1040785101 is an apocalyptic number.

It is an amenable number.

1040785101 is a deficient number, since it is larger than the sum of its proper divisors (552229803).

1040785101 is a wasteful number, since it uses less digits than its factorization.

1040785101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5261 (or 5258 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 27.

The square root of 1040785101 is about 32261.2011710662. The cubic root of 1040785101 is about 1013.4142859953.

The spelling of 1040785101 in words is "one billion, forty million, seven hundred eighty-five thousand, one hundred one".