64042903 has 4 divisors (see below), whose sum is σ = 64059880. Its totient is φ = 64025928.

The previous prime is 64042877. The next prime is 64042949. The reversal of 64042903 is 30924046.

64042903 is a nontrivial binomial coefficient, being equal to C(11318, 2).

It is a semiprime because it is the product of two primes.

It is a 3-Lehmer number, since φ(64042903) divides (64042903-1)³.

It is a cyclic number.

It is not a de Polignac number, because 64042903 - 2⁵ = 64042871 is a prime.

It is a super-3 number, since 3×64042903³ (a number of 24 digits) contains 333 as substring.

It is a deceptive number, since it divides R_64042902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64042003) 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, 1 + ... + 11317.

It is an arithmetic number, because the mean of its divisors is an integer number (16014970).

Almost surely, 2^64042903 is an apocalyptic number.

64042903 is the 11317-th triangular number and also the 5659-th hexagonal number.

64042903 is the 3773-rd centered nonagonal number.

64042903 is a deficient number, since it is larger than the sum of its proper divisors (16977).

64042903 is a wasteful number, since it uses less digits than its factorization.

64042903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16976.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 64042903 is about 8002.6809882689. The cubic root of 64042903 is about 400.0893612849.

Adding to 64042903 its reverse (30924046), we get a palindrome (94966949).

The spelling of 64042903 in words is "sixty-four million, forty-two thousand, nine hundred three".