1375540403 has 2 divisors, whose sum is σ = 1375540404. Its totient is φ = 1375540402.

The previous prime is 1375540391. The next prime is 1375540409. The reversal of 1375540403 is 3040455731.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1375540403 - 2¹⁰ = 1375539379 is a prime.

It is a super-2 number, since 2×1375540403² = 3784222800570804818, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1375540403.

It is not a weakly prime, because it can be changed into another prime (1375540409) 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 as a sum of consecutive naturals, namely, 687770201 + 687770202.

It is an arithmetic number, because the mean of its divisors is an integer number (687770202).

Almost surely, 2^1375540403 is an apocalyptic number.

1375540403 is a deficient number, since it is larger than the sum of its proper divisors (1).

1375540403 is an equidigital number, since it uses as much as digits as its factorization.

1375540403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25200, while the sum is 32.

The square root of 1375540403 is about 37088.2785122200. The cubic root of 1375540403 is about 1112.1357044480.

The spelling of 1375540403 in words is "one billion, three hundred seventy-five million, five hundred forty thousand, four hundred three".