161346013 has 4 divisors (see below), whose sum is σ = 161372320. Its totient is φ = 161319708.

The previous prime is 161345981. The next prime is 161346047. The reversal of 161346013 is 310643161.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 161346013 - 2⁵ = 161345981 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 (161346113) 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, 1456 + ... + 18022.

It is an arithmetic number, because the mean of its divisors is an integer number (40343080).

Almost surely, 2^161346013 is an apocalyptic number.

It is an amenable number.

161346013 is a deficient number, since it is larger than the sum of its proper divisors (26307).

161346013 is an equidigital number, since it uses as much as digits as its factorization.

161346013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26306.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 161346013 is about 12702.2050447944. The cubic root of 161346013 is about 544.4016247765.

Adding to 161346013 its reverse (310643161), we get a palindrome (471989174).

The spelling of 161346013 in words is "one hundred sixty-one million, three hundred forty-six thousand, thirteen".