64122137 has 4 divisors (see below), whose sum is σ = 66910080. Its totient is φ = 61334196.

The previous prime is 64122109. The next prime is 64122143. The reversal of 64122137 is 73122146.

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 64122137 - 2¹⁸ = 63859993 is a prime.

It is a super-2 number, since 2×64122137² = 8223296906893538, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64122187) 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, 1393937 + ... + 1393982.

It is an arithmetic number, because the mean of its divisors is an integer number (16727520).

Almost surely, 2^64122137 is an apocalyptic number.

It is an amenable number.

64122137 is a deficient number, since it is larger than the sum of its proper divisors (2787943).

64122137 is a wasteful number, since it uses less digits than its factorization.

64122137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2787942.

The product of its digits is 2016, while the sum is 26.

The square root of 64122137 is about 8007.6299240162. The cubic root of 64122137 is about 400.2542903901.

Subtracting 64122137 from its reverse (73122146), we obtain a palindrome (9000009).

The spelling of 64122137 in words is "sixty-four million, one hundred twenty-two thousand, one hundred thirty-seven".