1340525051 has 4 divisors (see below), whose sum is σ = 1340611704. Its totient is φ = 1340438400.

The previous prime is 1340525047. The next prime is 1340525057. The reversal of 1340525051 is 1505250431.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1340525051 - 2² = 1340525047 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 1340525051.

It is not an unprimeable number, because it can be changed into a prime (1340525057) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13085 + ... + 53406.

It is an arithmetic number, because the mean of its divisors is an integer number (335152926).

Almost surely, 2^1340525051 is an apocalyptic number.

1340525051 is a deficient number, since it is larger than the sum of its proper divisors (86653).

1340525051 is an equidigital number, since it uses as much as digits as its factorization.

1340525051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86652.

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 1340525051 is about 36613.1813832122. The cubic root of 1340525051 is about 1102.6177464170.

Adding to 1340525051 its reverse (1505250431), we get a palindrome (2845775482).

The spelling of 1340525051 in words is "one billion, three hundred forty million, five hundred twenty-five thousand, fifty-one".