235164521405 has 8 divisors (see below), whose sum is σ = 307851737184. Its totient is φ = 171028742800.

The previous prime is 235164521401. The next prime is 235164521411. The reversal of 235164521405 is 504125461532.

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

It is not a de Polignac number, because 235164521405 - 2² = 235164521401 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 (235164521401) 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, 2137859231 + ... + 2137859340.

It is an arithmetic number, because the mean of its divisors is an integer number (38481467148).

Almost surely, 2^235164521405 is an apocalyptic number.

It is an amenable number.

235164521405 is a deficient number, since it is larger than the sum of its proper divisors (72687215779).

235164521405 is a wasteful number, since it uses less digits than its factorization.

235164521405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4275718587.

The product of its (nonzero) digits is 144000, while the sum is 38.

Adding to 235164521405 its reverse (504125461532), we get a palindrome (739289982937).

The spelling of 235164521405 in words is "two hundred thirty-five billion, one hundred sixty-four million, five hundred twenty-one thousand, four hundred five".