161400134 has 8 divisors (see below), whose sum is σ = 276685968. Its totient is φ = 69171480.

The previous prime is 161400133. The next prime is 161400137. The reversal of 161400134 is 431004161.

161400134 is digitally balanced in base 2, 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 congruent number.

It is not an unprimeable number, because it can be changed into a prime (161400133) 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, 5764277 + ... + 5764304.

It is an arithmetic number, because the mean of its divisors is an integer number (34585746).

Almost surely, 2^161400134 is an apocalyptic number.

161400134 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

161400134 is a deficient number, since it is larger than the sum of its proper divisors (115285834).

161400134 is a wasteful number, since it uses less digits than its factorization.

161400134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11528590.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 161400134 is about 12704.3352443172. The cubic root of 161400134 is about 544.4624883125.

Adding to 161400134 its reverse (431004161), we get a palindrome (592404295).

The spelling of 161400134 in words is "one hundred sixty-one million, four hundred thousand, one hundred thirty-four".