161482503 has 32 divisors (see below), whose sum is σ = 273559552. Its totient is φ = 82425600.

The previous prime is 161482499. The next prime is 161482511. The reversal of 161482503 is 305284161.

It is not a de Polignac number, because 161482503 - 2² = 161482499 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161482543) 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, 1078 + ... + 18003.

It is an arithmetic number, because the mean of its divisors is an integer number (8548736).

Almost surely, 2^161482503 is an apocalyptic number.

161482503 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

161482503 is a deficient number, since it is larger than the sum of its proper divisors (112077049).

161482503 is a wasteful number, since it uses less digits than its factorization.

161482503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19135.

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 161482503 is about 12707.5765982346. The cubic root of 161482503 is about 544.5550929523. Note that the first 3 decimals are identical.

The spelling of 161482503 in words is "one hundred sixty-one million, four hundred eighty-two thousand, five hundred three".