161641483 has 4 divisors (see below), whose sum is σ = 161737128. Its totient is φ = 161545840.

The previous prime is 161641481. The next prime is 161641499. The reversal of 161641483 is 384146161.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 161641483 - 2¹ = 161641481 is a prime.

It is a super-2 number, since 2×161641483² = 52255938052878578, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (161641481) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45241 + ... + 48682.

It is an arithmetic number, because the mean of its divisors is an integer number (40434282).

Almost surely, 2^161641483 is an apocalyptic number.

161641483 is a deficient number, since it is larger than the sum of its proper divisors (95645).

161641483 is an equidigital number, since it uses as much as digits as its factorization.

161641483 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95644.

The product of its digits is 13824, while the sum is 34.

The square root of 161641483 is about 12713.8303826974. The cubic root of 161641483 is about 544.7337397035.

The spelling of 161641483 in words is "one hundred sixty-one million, six hundred forty-one thousand, four hundred eighty-three".