234800135391 has 4 divisors (see below), whose sum is σ = 313066847192. Its totient is φ = 156533423592.

The previous prime is 234800135387. The next prime is 234800135429. The reversal of 234800135391 is 193531008432.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 234800135391 - 2² = 234800135387 is a prime.

It is a super-2 number, since 2×234800135391² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234800135341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39133355896 + ... + 39133355901.

It is an arithmetic number, because the mean of its divisors is an integer number (78266711798).

Almost surely, 2^234800135391 is an apocalyptic number.

234800135391 is a deficient number, since it is larger than the sum of its proper divisors (78266711801).

234800135391 is an equidigital number, since it uses as much as digits as its factorization.

234800135391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78266711800.

The product of its (nonzero) digits is 77760, while the sum is 39.

The spelling of 234800135391 in words is "two hundred thirty-four billion, eight hundred million, one hundred thirty-five thousand, three hundred ninety-one".