1350814991 has 2 divisors, whose sum is σ = 1350814992. Its totient is φ = 1350814990.

The previous prime is 1350814901. The next prime is 1350815021. The reversal of 1350814991 is 1994180531.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1350814991 - 2¹⁴ = 1350798607 is a prime.

It is a super-2 number, since 2×1350814991² = 3649402279820660162, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1350814901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 675407495 + 675407496.

It is an arithmetic number, because the mean of its divisors is an integer number (675407496).

Almost surely, 2^1350814991 is an apocalyptic number.

1350814991 is a deficient number, since it is larger than the sum of its proper divisors (1).

1350814991 is an equidigital number, since it uses as much as digits as its factorization.

1350814991 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 38880, while the sum is 41.

The square root of 1350814991 is about 36753.4350911585. The cubic root of 1350814991 is about 1105.4318087423.

The spelling of 1350814991 in words is "one billion, three hundred fifty million, eight hundred fourteen thousand, nine hundred ninety-one".