1351250005 has 16 divisors (see below), whose sum is σ = 1859704704. Its totient is φ = 923290560.

The previous prime is 1351250003. The next prime is 1351250011. The reversal of 1351250005 is 5000521531.

It is not a de Polignac number, because 1351250005 - 2¹ = 1351250003 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 (1351250003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58306 + ... + 78115.

It is an arithmetic number, because the mean of its divisors is an integer number (116231544).

Almost surely, 2^1351250005 is an apocalyptic number.

It is an amenable number.

1351250005 is a deficient number, since it is larger than the sum of its proper divisors (508454699).

1351250005 is a wasteful number, since it uses less digits than its factorization.

1351250005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136716.

The product of its (nonzero) digits is 750, while the sum is 22.

The square root of 1351250005 is about 36759.3526194355. The cubic root of 1351250005 is about 1105.5504597554.

Adding to 1351250005 its reverse (5000521531), we get a palindrome (6351771536).

The spelling of 1351250005 in words is "one billion, three hundred fifty-one million, two hundred fifty thousand, five".