64162061 has 4 divisors (see below), whose sum is σ = 65065824. Its totient is φ = 63258300.

The previous prime is 64162039. The next prime is 64162073. The reversal of 64162061 is 16026146.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 64162061 - 2⁶ = 64161997 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 64162061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64162001) 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, 451775 + ... + 451916.

It is an arithmetic number, because the mean of its divisors is an integer number (16266456).

Almost surely, 2^64162061 is an apocalyptic number.

It is an amenable number.

64162061 is a deficient number, since it is larger than the sum of its proper divisors (903763).

64162061 is an equidigital number, since it uses as much as digits as its factorization.

64162061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 903762.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 64162061 is about 8010.1224085528. The cubic root of 64162061 is about 400.3373425034.

The spelling of 64162061 in words is "sixty-four million, one hundred sixty-two thousand, sixty-one".