1081403090 has 8 divisors (see below), whose sum is σ = 1946525580. Its totient is φ = 432561232.

The previous prime is 1081403053. The next prime is 1081403159. The reversal of 1081403090 is 903041801.

It can be written as a sum of positive squares in 2 ways, for example, as 1033558201 + 47844889 = 32149^2 + 6917^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54070145 + ... + 54070164.

Almost surely, 2^1081403090 is an apocalyptic number.

1081403090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1081403090 is a deficient number, since it is larger than the sum of its proper divisors (865122490).

1081403090 is a wasteful number, since it uses less digits than its factorization.

1081403090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108140316.

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 1081403090 is about 32884.6938559568. The cubic root of 1081403090 is about 1026.4296813207.

Adding to 1081403090 its reverse (903041801), we get a palindrome (1984444891).

The spelling of 1081403090 in words is "one billion, eighty-one million, four hundred three thousand, ninety".