1603142741 has 2 divisors, whose sum is σ = 1603142742. Its totient is φ = 1603142740.

The previous prime is 1603142731. The next prime is 1603142767. The reversal of 1603142741 is 1472413061.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1359470641 + 243672100 = 36871^2 + 15610^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1603142741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1603142731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 801571370 + 801571371.

It is an arithmetic number, because the mean of its divisors is an integer number (801571371).

Almost surely, 2^1603142741 is an apocalyptic number.

It is an amenable number.

1603142741 is a deficient number, since it is larger than the sum of its proper divisors (1).

1603142741 is an equidigital number, since it uses as much as digits as its factorization.

1603142741 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 1603142741 is about 40039.2649907563. The cubic root of 1603142741 is about 1170.3723803119.

The spelling of 1603142741 in words is "one billion, six hundred three million, one hundred forty-two thousand, seven hundred forty-one".