1603417091 has 2 divisors, whose sum is σ = 1603417092. Its totient is φ = 1603417090.

The previous prime is 1603417073. The next prime is 1603417093. The reversal of 1603417091 is 1907143061.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1603417091 is a prime.

Together with 1603417093, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1603417093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 801708545 + 801708546.

It is an arithmetic number, because the mean of its divisors is an integer number (801708546).

Almost surely, 2^1603417091 is an apocalyptic number.

1603417091 is a deficient number, since it is larger than the sum of its proper divisors (1).

1603417091 is an equidigital number, since it uses as much as digits as its factorization.

1603417091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536, while the sum is 32.

The square root of 1603417091 is about 40042.6908561350. The cubic root of 1603417091 is about 1170.4391394635.

The spelling of 1603417091 in words is "one billion, six hundred three million, four hundred seventeen thousand, ninety-one".