361138787 has 2 divisors, whose sum is σ = 361138788. Its totient is φ = 361138786.

The previous prime is 361138753. The next prime is 361138807. The reversal of 361138787 is 787831163.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 361138787 - 2¹⁸ = 360876643 is a prime.

It is not a weakly prime, because it can be changed into another prime (361131787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 180569393 + 180569394.

It is an arithmetic number, because the mean of its divisors is an integer number (180569394).

Almost surely, 2^361138787 is an apocalyptic number.

361138787 is a deficient number, since it is larger than the sum of its proper divisors (1).

361138787 is an equidigital number, since it uses as much as digits as its factorization.

361138787 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 169344, while the sum is 44.

The square root of 361138787 is about 19003.6519385091. The cubic root of 361138787 is about 712.1279720685.

The spelling of 361138787 in words is "three hundred sixty-one million, one hundred thirty-eight thousand, seven hundred eighty-seven".