10019901 has 4 divisors (see below), whose sum is σ = 13359872. Its totient is φ = 6679932.

The previous prime is 10019839. The next prime is 10019909. The reversal of 10019901 is 10991001.

10019901 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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 10019901 - 2¹¹ = 10017853 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10019909) 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, 1669981 + ... + 1669986.

It is an arithmetic number, because the mean of its divisors is an integer number (3339968).

Almost surely, 2^10019901 is an apocalyptic number.

It is an amenable number.

10019901 is a deficient number, since it is larger than the sum of its proper divisors (3339971).

10019901 is an equidigital number, since it uses as much as digits as its factorization.

10019901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3339970.

The product of its (nonzero) digits is 81, while the sum is 21.

The square root of 10019901 is about 3165.4227205857. The cubic root of 10019901 is about 215.5862923167.

The spelling of 10019901 in words is "ten million, nineteen thousand, nine hundred one".