164235407 has 6 divisors (see below), whose sum is σ = 191049408. Its totient is φ = 140773164.

The previous prime is 164235397. The next prime is 164235413. The reversal of 164235407 is 704532461.

It is not a de Polignac number, because 164235407 - 2¹² = 164231311 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 (164235007) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1675823 + ... + 1675920.

It is an arithmetic number, because the mean of its divisors is an integer number (31841568).

Almost surely, 2^164235407 is an apocalyptic number.

164235407 is a deficient number, since it is larger than the sum of its proper divisors (26814001).

164235407 is an equidigital number, since it uses as much as digits as its factorization.

164235407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3351757 (or 3351750 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 164235407 is about 12815.4362781764. The cubic root of 164235407 is about 547.6321423012.

Adding to 164235407 its reverse (704532461), we get a palindrome (868767868).

The spelling of 164235407 in words is "one hundred sixty-four million, two hundred thirty-five thousand, four hundred seven".