135001983 has 8 divisors (see below), whose sum is σ = 184188928. Its totient is φ = 87908184.

The previous prime is 135001957. The next prime is 135001987. The reversal of 135001983 is 389100531.

It is a happy number.

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

It is not a de Polignac number, because 135001983 - 2¹² = 134997887 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 135001983.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135001987) 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, 523135 + ... + 523392.

It is an arithmetic number, because the mean of its divisors is an integer number (23023616).

Almost surely, 2^135001983 is an apocalyptic number.

135001983 is a deficient number, since it is larger than the sum of its proper divisors (49186945).

135001983 is a wasteful number, since it uses less digits than its factorization.

135001983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1046573.

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 135001983 is about 11619.0353730419. The cubic root of 135001983 is about 512.9952957554.

The spelling of 135001983 in words is "one hundred thirty-five million, one thousand, nine hundred eighty-three".