213006191493 has 8 divisors (see below), whose sum is σ = 286820218656. Its totient is φ = 140598146000.

The previous prime is 213006191467. The next prime is 213006191561. The reversal of 213006191493 is 394191600312.

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 213006191493 - 2¹⁶ = 213006125957 is a prime.

It is a super-2 number, since 2×213006191493² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213006191693) 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, 351495063 + ... + 351495668.

It is an arithmetic number, because the mean of its divisors is an integer number (35852527332).

Almost surely, 2^213006191493 is an apocalyptic number.

It is an amenable number.

213006191493 is a deficient number, since it is larger than the sum of its proper divisors (73814027163).

213006191493 is a wasteful number, since it uses less digits than its factorization.

213006191493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 702990835.

The product of its (nonzero) digits is 34992, while the sum is 39.

The spelling of 213006191493 in words is "two hundred thirteen billion, six million, one hundred ninety-one thousand, four hundred ninety-three".