63161587 has 2 divisors, whose sum is σ = 63161588. Its totient is φ = 63161586.

The previous prime is 63161489. The next prime is 63161597. The reversal of 63161587 is 78516136.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 63161587 - 2⁷ = 63161459 is a prime.

It is not a weakly prime, because it can be changed into another prime (63161597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31580793 + 31580794.

It is an arithmetic number, because the mean of its divisors is an integer number (31580794).

Almost surely, 2^63161587 is an apocalyptic number.

63161587 is a deficient number, since it is larger than the sum of its proper divisors (1).

63161587 is an equidigital number, since it uses as much as digits as its factorization.

63161587 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30240, while the sum is 37.

The square root of 63161587 is about 7947.4264387914. The cubic root of 63161587 is about 398.2456229018.

The spelling of 63161587 in words is "sixty-three million, one hundred sixty-one thousand, five hundred eighty-seven".