1603645241 has 32 divisors (see below), whose sum is σ = 1886467968. Its totient is φ = 1347056640.

The previous prime is 1603645223. The next prime is 1603645243. The reversal of 1603645241 is 1425463061.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1603645241 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1603645198 and 1603645207.

It is not an unprimeable number, because it can be changed into a prime (1603645243) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4299131 + ... + 4299503.

It is an arithmetic number, because the mean of its divisors is an integer number (58952124).

Almost surely, 2^1603645241 is an apocalyptic number.

1603645241 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1603645241 is a deficient number, since it is larger than the sum of its proper divisors (282822727).

1603645241 is a wasteful number, since it uses less digits than its factorization.

1603645241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 761.

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 1603645241 is about 40045.5395893226. The cubic root of 1603645241 is about 1170.4946507061.

The spelling of 1603645241 in words is "one billion, six hundred three million, six hundred forty-five thousand, two hundred forty-one".