1101742785 has 96 divisors (see below), whose sum is σ = 2254831488. Its totient is φ = 490613760.

The previous prime is 1101742771. The next prime is 1101742793. The reversal of 1101742785 is 5872471011.

It is not a de Polignac number, because 1101742785 - 2⁵ = 1101742753 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2013882 + ... + 2014428.

It is an arithmetic number, because the mean of its divisors is an integer number (23487828).

Almost surely, 2^1101742785 is an apocalyptic number.

1101742785 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1101742785 is an abundant number, since it is smaller than the sum of its proper divisors (1153088703).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1101742785 is a wasteful number, since it uses less digits than its factorization.

1101742785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 895 (or 892 counting only the distinct ones).

The product of its (nonzero) digits is 15680, while the sum is 36.

The square root of 1101742785 is about 33192.5109776287. The cubic root of 1101742785 is about 1032.8249921328.

The spelling of 1101742785 in words is "one billion, one hundred one million, seven hundred forty-two thousand, seven hundred eighty-five".