64192121 has 8 divisors (see below), whose sum is σ = 73550400. Its totient is φ = 54880848.

The previous prime is 64192081. The next prime is 64192123. The reversal of 64192121 is 12129146.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 64192121 - 2¹⁰ = 64191097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (64192123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8771 + ... + 14328.

It is an arithmetic number, because the mean of its divisors is an integer number (9193800).

Almost surely, 2^64192121 is an apocalyptic number.

It is an amenable number.

64192121 is a deficient number, since it is larger than the sum of its proper divisors (9358279).

64192121 is a wasteful number, since it uses less digits than its factorization.

64192121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23503.

The product of its digits is 864, while the sum is 26.

The square root of 64192121 is about 8011.9985646529. The cubic root of 64192121 is about 400.3998522456.

The spelling of 64192121 in words is "sixty-four million, one hundred ninety-two thousand, one hundred twenty-one".