1375001253 has 24 divisors (see below), whose sum is σ = 2110212000. Its totient is φ = 860294304.

The previous prime is 1375001227. The next prime is 1375001267. The reversal of 1375001253 is 3521005731.

1375001253 is a `hidden beast` number, since 1 + 37 + 500 + 125 + 3 = 666.

It is not a de Polignac number, because 1375001253 - 2¹⁴ = 1374984869 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1375001213) 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 23 ways as a sum of consecutive naturals, for example, 19278 + ... + 55871.

It is an arithmetic number, because the mean of its divisors is an integer number (87925500).

Almost surely, 2^1375001253 is an apocalyptic number.

It is an amenable number.

1375001253 is a deficient number, since it is larger than the sum of its proper divisors (735210747).

1375001253 is a wasteful number, since it uses less digits than its factorization.

1375001253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75281 (or 75278 counting only the distinct ones).

The product of its (nonzero) digits is 3150, while the sum is 27.

The square root of 1375001253 is about 37081.0093309230. The cubic root of 1375001253 is about 1111.9903830600.

Adding to 1375001253 its reverse (3521005731), we get a palindrome (4896006984).

The spelling of 1375001253 in words is "one billion, three hundred seventy-five million, one thousand, two hundred fifty-three".