64376121 has 4 divisors (see below), whose sum is σ = 85834832. Its totient is φ = 42917412.

The previous prime is 64376101. The next prime is 64376141. The reversal of 64376121 is 12167346.

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 an interprime number because it is at equal distance from previous prime (64376101) and next prime (64376141).

It is not a de Polignac number, because 64376121 - 2¹⁵ = 64343353 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (64376101) 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, 10729351 + ... + 10729356.

It is an arithmetic number, because the mean of its divisors is an integer number (21458708).

Almost surely, 2^64376121 is an apocalyptic number.

It is an amenable number.

64376121 is a deficient number, since it is larger than the sum of its proper divisors (21458711).

64376121 is a wasteful number, since it uses less digits than its factorization.

64376121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21458710.

The product of its digits is 6048, while the sum is 30.

The square root of 64376121 is about 8023.4731257729. The cubic root of 64376121 is about 400.7820553936.

The spelling of 64376121 in words is "sixty-four million, three hundred seventy-six thousand, one hundred twenty-one".