213140001 has 4 divisors (see below), whose sum is σ = 284186672. Its totient is φ = 142093332.

The previous prime is 213139991. The next prime is 213140009. The reversal of 213140001 is 100041312.

It is a happy number.

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 not a de Polignac number, because 213140001 - 2¹⁰ = 213138977 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (213140009) 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, 35523331 + ... + 35523336.

It is an arithmetic number, because the mean of its divisors is an integer number (71046668).

Almost surely, 2^213140001 is an apocalyptic number.

It is an amenable number.

213140001 is a deficient number, since it is larger than the sum of its proper divisors (71046671).

213140001 is an equidigital number, since it uses as much as digits as its factorization.

213140001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71046670.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 213140001 is about 14599.3150866744. The cubic root of 213140001 is about 597.3400782301.

Adding to 213140001 its reverse (100041312), we get a palindrome (313181313).

The spelling of 213140001 in words is "two hundred thirteen million, one hundred forty thousand, one".