1315755111 has 32 divisors (see below), whose sum is σ = 2020481280. Its totient is φ = 755327520.

The previous prime is 1315755107. The next prime is 1315755131. The reversal of 1315755111 is 1115575131.

It is not a de Polignac number, because 1315755111 - 2² = 1315755107 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1315755101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 223441 + ... + 229253.

It is an arithmetic number, because the mean of its divisors is an integer number (63140040).

Almost surely, 2^1315755111 is an apocalyptic number.

1315755111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1315755111 is a deficient number, since it is larger than the sum of its proper divisors (704726169).

1315755111 is an equidigital number, since it uses as much as digits as its factorization.

1315755111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5884 (or 5846 counting only the distinct ones).

The product of its digits is 2625, while the sum is 30.

The square root of 1315755111 is about 36273.3388454937. The cubic root of 1315755111 is about 1095.7841692211.

The spelling of 1315755111 in words is "one billion, three hundred fifteen million, seven hundred fifty-five thousand, one hundred eleven".