135002391 has 8 divisors (see below), whose sum is σ = 189477120. Its totient is φ = 85264632.

The previous prime is 135002383. The next prime is 135002393. The reversal of 135002391 is 193200531.

It is a happy number.

135002391 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 135002391 - 2³ = 135002383 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135002393) 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, 1184175 + ... + 1184288.

It is an arithmetic number, because the mean of its divisors is an integer number (23684640).

Almost surely, 2^135002391 is an apocalyptic number.

135002391 is a deficient number, since it is larger than the sum of its proper divisors (54474729).

135002391 is a wasteful number, since it uses less digits than its factorization.

135002391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2368485.

The product of its (nonzero) digits is 810, while the sum is 24.

The square root of 135002391 is about 11619.0529304242. The cubic root of 135002391 is about 512.9958125425.

The spelling of 135002391 in words is "one hundred thirty-five million, two thousand, three hundred ninety-one".