1163525406 has 16 divisors (see below), whose sum is σ = 2340987264. Its totient is φ = 385519064.

The previous prime is 1163525399. The next prime is 1163525411. The reversal of 1163525406 is 6045253611.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 579600 + ... + 581603.

It is an arithmetic number, because the mean of its divisors is an integer number (146311704).

Almost surely, 2^1163525406 is an apocalyptic number.

1163525406 is an abundant number, since it is smaller than the sum of its proper divisors (1177461858).

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

1163525406 is a wasteful number, since it uses less digits than its factorization.

1163525406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1161375.

The product of its (nonzero) digits is 21600, while the sum is 33.

The square root of 1163525406 is about 34110.4882111060. The cubic root of 1163525406 is about 1051.7809250236.

The spelling of 1163525406 in words is "one billion, one hundred sixty-three million, five hundred twenty-five thousand, four hundred six".