1603143143 has 12 divisors (see below), whose sum is σ = 1866367872. Its totient is φ = 1373027040.

The previous prime is 1603143137. The next prime is 1603143149. The reversal of 1603143143 is 3413413061.

It is an interprime number because it is at equal distance from previous prime (1603143137) and next prime (1603143149).

It is not a de Polignac number, because 1603143143 - 2¹² = 1603139047 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 (1603143149) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 52346 + ... + 77112.

It is an arithmetic number, because the mean of its divisors is an integer number (155530656).

Almost surely, 2^1603143143 is an apocalyptic number.

1603143143 is a deficient number, since it is larger than the sum of its proper divisors (263224729).

1603143143 is a wasteful number, since it uses less digits than its factorization.

1603143143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26102 (or 26095 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 1603143143 is about 40039.2700108281. The cubic root of 1603143143 is about 1170.3724781384.

The spelling of 1603143143 in words is "one billion, six hundred three million, one hundred forty-three thousand, one hundred forty-three".