1311457207 has 8 divisors (see below), whose sum is σ = 1319352320. Its totient is φ = 1303578360.

The previous prime is 1311457157. The next prime is 1311457219. The reversal of 1311457207 is 7027541131.

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

It is a cyclic number.

It is not a de Polignac number, because 1311457207 - 2¹⁹ = 1310932919 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311457247) 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, 182794 + ... + 189832.

It is an arithmetic number, because the mean of its divisors is an integer number (164919040).

Almost surely, 2^1311457207 is an apocalyptic number.

1311457207 is a deficient number, since it is larger than the sum of its proper divisors (7895113).

1311457207 is an equidigital number, since it uses as much as digits as its factorization.

1311457207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8133.

The product of its (nonzero) digits is 5880, while the sum is 31.

The square root of 1311457207 is about 36214.0470950155. The cubic root of 1311457207 is about 1094.5897442148.

Adding to 1311457207 its reverse (7027541131), we get a palindrome (8338998338).

The spelling of 1311457207 in words is "one billion, three hundred eleven million, four hundred fifty-seven thousand, two hundred seven".