64161442 has 16 divisors (see below), whose sum is σ = 102088800. Its totient is φ = 30157920.

The previous prime is 64161431. The next prime is 64161463. The reversal of 64161442 is 24416146.

It is a self number, because there is not a number n which added to its sum of digits gives 64161442.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1467 + ... + 11422.

It is an arithmetic number, because the mean of its divisors is an integer number (6380550).

Almost surely, 2^64161442 is an apocalyptic number.

64161442 is a deficient number, since it is larger than the sum of its proper divisors (37927358).

64161442 is a wasteful number, since it uses less digits than its factorization.

64161442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13041.

The product of its digits is 4608, while the sum is 28.

The square root of 64161442 is about 8010.0837698491. The cubic root of 64161442 is about 400.3360550884.

Adding to 64161442 its reverse (24416146), we get a palindrome (88577588).

It can be divided in two parts, 6416144 and 2, that added together give a palindrome (6416146).

The spelling of 64161442 in words is "sixty-four million, one hundred sixty-one thousand, four hundred forty-two".