213990501 has 8 divisors (see below), whose sum is σ = 289998304. Its totient is φ = 140321520.

The previous prime is 213990493. The next prime is 213990527. The reversal of 213990501 is 105099312.

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

It is not a de Polignac number, because 213990501 - 2³ = 213990493 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213990541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 584491 + ... + 584856.

It is an arithmetic number, because the mean of its divisors is an integer number (36249788).

Almost surely, 2^213990501 is an apocalyptic number.

It is an amenable number.

213990501 is a deficient number, since it is larger than the sum of its proper divisors (76007803).

213990501 is a wasteful number, since it uses less digits than its factorization.

213990501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1169411.

The product of its (nonzero) digits is 2430, while the sum is 30.

The square root of 213990501 is about 14628.4141655888. The cubic root of 213990501 is about 598.1335527560.

The spelling of 213990501 in words is "two hundred thirteen million, nine hundred ninety thousand, five hundred one".