1351550403 has 48 divisors (see below), whose sum is σ = 2372198400. Its totient is φ = 724756032.

The previous prime is 1351550381. The next prime is 1351550411. The reversal of 1351550403 is 3040551531.

It is not a de Polignac number, because 1351550403 - 2⁹ = 1351549891 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1351550483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 67998 + ... + 85596.

It is an arithmetic number, because the mean of its divisors is an integer number (49420800).

Almost surely, 2^1351550403 is an apocalyptic number.

1351550403 is a deficient number, since it is larger than the sum of its proper divisors (1020647997).

1351550403 is a wasteful number, since it uses less digits than its factorization.

1351550403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17688 (or 17685 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 27.

The square root of 1351550403 is about 36763.4384001279. The cubic root of 1351550403 is about 1105.6323790989.

The spelling of 1351550403 in words is "one billion, three hundred fifty-one million, five hundred fifty thousand, four hundred three".