64616142 has 16 divisors (see below), whose sum is σ = 129507840. Its totient is φ = 21492792.

The previous prime is 64616137. The next prime is 64616161. The reversal of 64616142 is 24161646.

It is a congruent number.

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, 8368 + ... + 14115.

It is an arithmetic number, because the mean of its divisors is an integer number (8094240).

Almost surely, 2^64616142 is an apocalyptic number.

64616142 is an abundant number, since it is smaller than the sum of its proper divisors (64891698).

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

64616142 is a wasteful number, since it uses less digits than its factorization.

64616142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22967.

The product of its digits is 6912, while the sum is 30.

The square root of 64616142 is about 8038.4166351341. The cubic root of 64616142 is about 401.2795317983.

Adding to 64616142 its reverse (24161646), we get a palindrome (88777788).

The spelling of 64616142 in words is "sixty-four million, six hundred sixteen thousand, one hundred forty-two".