135472001 has 16 divisors (see below), whose sum is σ = 165003264. Its totient is φ = 108700944.

The previous prime is 135471991. The next prime is 135472009. The reversal of 135472001 is 100274531.

It is not a de Polignac number, because 135472001 - 2⁶ = 135471937 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135472009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1385 + ... + 16518.

It is an arithmetic number, because the mean of its divisors is an integer number (10312704).

Almost surely, 2^135472001 is an apocalyptic number.

It is an amenable number.

135472001 is a deficient number, since it is larger than the sum of its proper divisors (29531263).

135472001 is a wasteful number, since it uses less digits than its factorization.

135472001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17980.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 135472001 is about 11639.2440046594. The cubic root of 135472001 is about 513.5899481107.

The spelling of 135472001 in words is "one hundred thirty-five million, four hundred seventy-two thousand, one".