10135391 has 4 divisors (see below), whose sum is σ = 11583312. Its totient is φ = 8687472.

The previous prime is 10135381. The next prime is 10135399. The reversal of 10135391 is 19353101.

10135391 is digitally balanced in base 3, because in such base 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 an emirpimes, since its reverse is a distinct semiprime: 19353101 = 1607 ⋅12043.

It is a cyclic number.

It is not a de Polignac number, because 10135391 - 2⁶ = 10135327 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 (10135399) 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, 723950 + ... + 723963.

It is an arithmetic number, because the mean of its divisors is an integer number (2895828).

Almost surely, 2^10135391 is an apocalyptic number.

10135391 is a deficient number, since it is larger than the sum of its proper divisors (1447921).

10135391 is an equidigital number, since it uses as much as digits as its factorization.

10135391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1447920.

The product of its (nonzero) digits is 405, while the sum is 23.

The square root of 10135391 is about 3183.6128847584. The cubic root of 10135391 is about 216.4114172325.

Adding to 10135391 its reverse (19353101), we get a palindrome (29488492).

The spelling of 10135391 in words is "ten million, one hundred thirty-five thousand, three hundred ninety-one".