1361490787 has 2 divisors, whose sum is σ = 1361490788. Its totient is φ = 1361490786.

The previous prime is 1361490763. The next prime is 1361490821. The reversal of 1361490787 is 7870941631.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1361490787 - 2¹⁵ = 1361458019 is a prime.

It is not a weakly prime, because it can be changed into another prime (1361490707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 680745393 + 680745394.

It is an arithmetic number, because the mean of its divisors is an integer number (680745394).

Almost surely, 2^1361490787 is an apocalyptic number.

1361490787 is a deficient number, since it is larger than the sum of its proper divisors (1).

1361490787 is an equidigital number, since it uses as much as digits as its factorization.

1361490787 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 254016, while the sum is 46.

The square root of 1361490787 is about 36898.3846123377. The cubic root of 1361490787 is about 1108.3363295275.

It can be divided in two parts, 13614 and 90787, that added together give a palindrome (104401).

The spelling of 1361490787 in words is "one billion, three hundred sixty-one million, four hundred ninety thousand, seven hundred eighty-seven".