69972135 has 8 divisors (see below), whose sum is σ = 111955440. Its totient is φ = 37318464.

The previous prime is 69972131. The next prime is 69972163. The reversal of 69972135 is 53127996.

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

It is not a de Polignac number, because 69972135 - 2² = 69972131 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69972131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2332390 + ... + 2332419.

It is an arithmetic number, because the mean of its divisors is an integer number (13994430).

Almost surely, 2^69972135 is an apocalyptic number.

69972135 is a deficient number, since it is larger than the sum of its proper divisors (41983305).

69972135 is a wasteful number, since it uses less digits than its factorization.

69972135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4664817.

The product of its digits is 102060, while the sum is 42.

The square root of 69972135 is about 8364.9348473255. The cubic root of 69972135 is about 412.0738371921.

It can be divided in two parts, 69972 and 135, that added together give a palindrome (70107).

The spelling of 69972135 in words is "sixty-nine million, nine hundred seventy-two thousand, one hundred thirty-five".