137435246369 has 4 divisors (see below), whose sum is σ = 145519672644. Its totient is φ = 129350820096.

The previous prime is 137435246363. The next prime is 137435246381. The reversal of 137435246369 is 963642534731.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 88732494400 + 48702751969 = 297880^2 + 220687^2 .

It is a cyclic number.

It is not a de Polignac number, because 137435246369 - 2⁴ = 137435246353 is a prime.

It is a super-2 number, since 2×137435246369² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 137435246369.

It is not an unprimeable number, because it can be changed into a prime (137435246363) 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, 4042213112 + ... + 4042213145.

It is an arithmetic number, because the mean of its divisors is an integer number (36379918161).

Almost surely, 2^137435246369 is an apocalyptic number.

It is an amenable number.

137435246369 is a deficient number, since it is larger than the sum of its proper divisors (8084426275).

137435246369 is an equidigital number, since it uses as much as digits as its factorization.

137435246369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8084426274.

The product of its digits is 9797760, while the sum is 53.

The spelling of 137435246369 in words is "one hundred thirty-seven billion, four hundred thirty-five million, two hundred forty-six thousand, three hundred sixty-nine".