161210126 has 32 divisors (see below), whose sum is σ = 302082048. Its totient is φ = 62684640.

The previous prime is 161210113. The next prime is 161210143. The reversal of 161210126 is 621012161.

It is a junction number, because it is equal to n+sod(n) for n = 161210098 and 161210107.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 132296 + ... + 133508.

It is an arithmetic number, because the mean of its divisors is an integer number (9440064).

Almost surely, 2^161210126 is an apocalyptic number.

161210126 is a deficient number, since it is larger than the sum of its proper divisors (140871922).

161210126 is a wasteful number, since it uses less digits than its factorization.

161210126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2096.

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 161210126 is about 12696.8549649116. The cubic root of 161210126 is about 544.2487486069.

Adding to 161210126 its reverse (621012161), we get a palindrome (782222287).

The spelling of 161210126 in words is "one hundred sixty-one million, two hundred ten thousand, one hundred twenty-six".