1630229903 has 6 divisors (see below), whose sum is σ = 1701311544. Its totient is φ = 1559165124.

The previous prime is 1630229897. The next prime is 1630229971. The reversal of 1630229903 is 3099220361.

It is not a de Polignac number, because 1630229903 - 2²⁰ = 1629181327 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 (1630220903) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 189428 + ... + 197846.

It is an arithmetic number, because the mean of its divisors is an integer number (283551924).

Almost surely, 2^1630229903 is an apocalyptic number.

1630229903 is a deficient number, since it is larger than the sum of its proper divisors (71081641).

1630229903 is an frugal number, since it uses more digits than its factorization.

1630229903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16861 (or 8442 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 35.

The square root of 1630229903 is about 40376.1055947698. The cubic root of 1630229903 is about 1176.9272498476.

The spelling of 1630229903 in words is "one billion, six hundred thirty million, two hundred twenty-nine thousand, nine hundred three".