137435252263 has 4 divisors (see below), whose sum is σ = 137438508168. Its totient is φ = 137431996360.

The previous prime is 137435252239. The next prime is 137435252267. The reversal of 137435252263 is 362252534731.

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

It is a cyclic number.

It is not a de Polignac number, because 137435252263 - 2²⁵ = 137401697831 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 (137435252267) 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, 1563793 + ... + 1649338.

It is an arithmetic number, because the mean of its divisors is an integer number (34359627042).

Almost surely, 2^137435252263 is an apocalyptic number.

137435252263 is a deficient number, since it is larger than the sum of its proper divisors (3255905).

137435252263 is an equidigital number, since it uses as much as digits as its factorization.

137435252263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3255904.

The product of its digits is 907200, while the sum is 43.

Adding to 137435252263 its reverse (362252534731), we get a palindrome (499687786994).

The spelling of 137435252263 in words is "one hundred thirty-seven billion, four hundred thirty-five million, two hundred fifty-two thousand, two hundred sixty-three".