1026581361 has 16 divisors (see below), whose sum is σ = 1489267584. Its totient is φ = 625227264.

The previous prime is 1026581357. The next prime is 1026581377. The reversal of 1026581361 is 1631856201.

1026581361 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1026581361 - 2² = 1026581357 is a prime.

It is a super-2 number, since 2×1026581361² = 2107738581505224642, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1026581321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 131901 + ... + 139466.

It is an arithmetic number, because the mean of its divisors is an integer number (93079224).

Almost surely, 2^1026581361 is an apocalyptic number.

It is an amenable number.

1026581361 is a deficient number, since it is larger than the sum of its proper divisors (462686223).

1026581361 is a wasteful number, since it uses less digits than its factorization.

1026581361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271480.

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 1026581361 is about 32040.3083786658. The cubic root of 1026581361 is about 1008.7830852305.

The spelling of 1026581361 in words is "one billion, twenty-six million, five hundred eighty-one thousand, three hundred sixty-one".