161530134 has 16 divisors (see below), whose sum is σ = 340063680. Its totient is φ = 51009480.

The previous prime is 161530133. The next prime is 161530147. The reversal of 161530134 is 431035161.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161530133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 708352 + ... + 708579.

It is an arithmetic number, because the mean of its divisors is an integer number (21253980).

Almost surely, 2^161530134 is an apocalyptic number.

161530134 is an abundant number, since it is smaller than the sum of its proper divisors (178533546).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

161530134 is a wasteful number, since it uses less digits than its factorization.

161530134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1416955.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 161530134 is about 12709.4505782115. The cubic root of 161530134 is about 544.6086284816.

Adding to 161530134 its reverse (431035161), we get a palindrome (592565295).

The spelling of 161530134 in words is "one hundred sixty-one million, five hundred thirty thousand, one hundred thirty-four".