161349494 has 8 divisors (see below), whose sum is σ = 242117688. Its totient is φ = 80643600.

The previous prime is 161349493. The next prime is 161349511. The reversal of 161349494 is 494943161.

161349494 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161349493) 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, 8447 + ... + 19850.

It is an arithmetic number, because the mean of its divisors is an integer number (30264711).

Almost surely, 2^161349494 is an apocalyptic number.

161349494 is a deficient number, since it is larger than the sum of its proper divisors (80768194).

161349494 is a wasteful number, since it uses less digits than its factorization.

161349494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31150.

The product of its digits is 93312, while the sum is 41.

The square root of 161349494 is about 12702.3420675087. The cubic root of 161349494 is about 544.4055398581.

The spelling of 161349494 in words is "one hundred sixty-one million, three hundred forty-nine thousand, four hundred ninety-four".