1340025511 has 8 divisors (see below), whose sum is σ = 1473928848. Its totient is φ = 1218203800.

The previous prime is 1340025473. The next prime is 1340025541. The reversal of 1340025511 is 1155200431.

It is a happy number.

It is not a de Polignac number, because 1340025511 - 2⁹ = 1340024999 is a prime.

It is a super-2 number, since 2×1340025511² = 3591336740261622242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1340025541) 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, 502060 + ... + 504721.

It is an arithmetic number, because the mean of its divisors is an integer number (184241106).

Almost surely, 2^1340025511 is an apocalyptic number.

1340025511 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1340025511 is a deficient number, since it is larger than the sum of its proper divisors (133903337).

1340025511 is an equidigital number, since it uses as much as digits as its factorization.

1340025511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1006814 (or 1006792 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 1340025511 is about 36606.3588874939. The cubic root of 1340025511 is about 1102.4807677258.

Adding to 1340025511 its reverse (1155200431), we get a palindrome (2495225942).

The spelling of 1340025511 in words is "one billion, three hundred forty million, twenty-five thousand, five hundred eleven".