1309131227 has 8 divisors (see below), whose sum is σ = 1367041536. Its totient is φ = 1251303592.

The previous prime is 1309131191. The next prime is 1309131233. The reversal of 1309131227 is 7221319031.

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

It is not a de Polignac number, because 1309131227 - 2⁸ = 1309130971 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1309131227.

It is not an unprimeable number, because it can be changed into a prime (1309131247) 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, 12878 + ... + 52764.

It is an arithmetic number, because the mean of its divisors is an integer number (170880192).

Almost surely, 2^1309131227 is an apocalyptic number.

1309131227 is a deficient number, since it is larger than the sum of its proper divisors (57910309).

1309131227 is a wasteful number, since it uses less digits than its factorization.

1309131227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41337.

The product of its (nonzero) digits is 2268, while the sum is 29.

The square root of 1309131227 is about 36181.9185091117. The cubic root of 1309131227 is about 1093.9422455131.

The spelling of 1309131227 in words is "one billion, three hundred nine million, one hundred thirty-one thousand, two hundred twenty-seven".