1135723864 has 32 divisors (see below), whose sum is σ = 2361165840. Its totient is φ = 507772800.

The previous prime is 1135723861. The next prime is 1135723871. The reversal of 1135723864 is 4683275311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1135723861) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100419 + ... + 111154.

Almost surely, 2^1135723864 is an apocalyptic number.

It is an amenable number.

1135723864 is an abundant number, since it is smaller than the sum of its proper divisors (1225441976).

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

1135723864 is a wasteful number, since it uses less digits than its factorization.

1135723864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211651 (or 211647 counting only the distinct ones).

The product of its digits is 120960, while the sum is 40.

The square root of 1135723864 is about 33700.5024294891. The cubic root of 1135723864 is about 1043.3361383854.

The spelling of 1135723864 in words is "one billion, one hundred thirty-five million, seven hundred twenty-three thousand, eight hundred sixty-four".