87061133 has 2 divisors, whose sum is σ = 87061134. Its totient is φ = 87061132.

The previous prime is 87061129. The next prime is 87061157. The reversal of 87061133 is 33116078.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 67683529 + 19377604 = 8227^2 + 4402^2 .

It is a cyclic number.

It is not a de Polignac number, because 87061133 - 2² = 87061129 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 87061096 and 87061105.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87061193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43530566 + 43530567.

It is an arithmetic number, because the mean of its divisors is an integer number (43530567).

Almost surely, 2^87061133 is an apocalyptic number.

It is an amenable number.

87061133 is a deficient number, since it is larger than the sum of its proper divisors (1).

87061133 is an equidigital number, since it uses as much as digits as its factorization.

87061133 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 87061133 is about 9330.6555503887. The cubic root of 87061133 is about 443.2085245491.

The spelling of 87061133 in words is "eighty-seven million, sixty-one thousand, one hundred thirty-three".