64144363 has 8 divisors (see below), whose sum is σ = 67464576. Its totient is φ = 60902400.

The previous prime is 64144343. The next prime is 64144397. The reversal of 64144363 is 36344146.

It is a happy number.

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 64144363 - 2¹⁷ = 64013291 is a prime.

It is a super-2 number, since 2×64144363² = 8228998609351538, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64144343) 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, 17878 + ... + 21163.

It is an arithmetic number, because the mean of its divisors is an integer number (8433072).

Almost surely, 2^64144363 is an apocalyptic number.

64144363 is a deficient number, since it is larger than the sum of its proper divisors (3320213).

64144363 is a wasteful number, since it uses less digits than its factorization.

64144363 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39125.

The product of its digits is 20736, while the sum is 31.

The square root of 64144363 is about 8009.0176051748. The cubic root of 64144363 is about 400.3005303972.

The spelling of 64144363 in words is "sixty-four million, one hundred forty-four thousand, three hundred sixty-three".