161787462 has 16 divisors (see below), whose sum is σ = 334733040. Its totient is φ = 52069472.

The previous prime is 161787407. The next prime is 161787467. The reversal of 161787462 is 264787161.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161787467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 464733 + ... + 465080.

It is an arithmetic number, because the mean of its divisors is an integer number (20920815).

Almost surely, 2^161787462 is an apocalyptic number.

161787462 is an abundant number, since it is smaller than the sum of its proper divisors (172945578).

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

161787462 is a wasteful number, since it uses less digits than its factorization.

161787462 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 929847.

The product of its digits is 112896, while the sum is 42.

The square root of 161787462 is about 12719.5700399031. The cubic root of 161787462 is about 544.8976740248.

The spelling of 161787462 in words is "one hundred sixty-one million, seven hundred eighty-seven thousand, four hundred sixty-two".