1327115890 has 16 divisors (see below), whose sum is σ = 2465867520. Its totient is φ = 513722160.

The previous prime is 1327115869. The next prime is 1327115891. The reversal of 1327115890 is 985117231.

It is a super-2 number, since 2×1327115890² = 3522473170980984200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1327115891) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2140200 + ... + 2140819.

It is an arithmetic number, because the mean of its divisors is an integer number (154116720).

Almost surely, 2^1327115890 is an apocalyptic number.

1327115890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1327115890 is a deficient number, since it is larger than the sum of its proper divisors (1138751630).

1327115890 is a wasteful number, since it uses less digits than its factorization.

1327115890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4281057.

The product of its (nonzero) digits is 15120, while the sum is 37.

The square root of 1327115890 is about 36429.6018369677. The cubic root of 1327115890 is about 1098.9289547309.

It can be divided in two parts, 132711 and 5890, that added together give a triangular number (138601 = T₅₂₆).

The spelling of 1327115890 in words is "one billion, three hundred twenty-seven million, one hundred fifteen thousand, eight hundred ninety".