1081316601 has 16 divisors (see below), whose sum is σ = 1645248000. Its totient is φ = 701393904.

The previous prime is 1081316573. The next prime is 1081316609. The reversal of 1081316601 is 1066131801.

It is not a de Polignac number, because 1081316601 - 2¹⁴ = 1081300217 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1081316609) 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, 540201 + ... + 542198.

It is an arithmetic number, because the mean of its divisors is an integer number (102828000).

Almost surely, 2^1081316601 is an apocalyptic number.

It is an amenable number.

1081316601 is a deficient number, since it is larger than the sum of its proper divisors (563931399).

1081316601 is a wasteful number, since it uses less digits than its factorization.

1081316601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1082445 (or 1082439 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The square root of 1081316601 is about 32883.3787953732. The cubic root of 1081316601 is about 1026.4023164881.

The spelling of 1081316601 in words is "one billion, eighty-one million, three hundred sixteen thousand, six hundred one".