137271722246 has 4 divisors (see below), whose sum is σ = 205907583372. Its totient is φ = 68635861122.

The previous prime is 137271722221. The next prime is 137271722257. The reversal of 137271722246 is 642227172731.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 137271722197 and 137271722206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34317930560 + ... + 34317930563.

It is an arithmetic number, because the mean of its divisors is an integer number (51476895843).

Almost surely, 2^137271722246 is an apocalyptic number.

137271722246 is a deficient number, since it is larger than the sum of its proper divisors (68635861126).

137271722246 is an equidigital number, since it uses as much as digits as its factorization.

137271722246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68635861125.

The product of its digits is 395136, while the sum is 44.

Adding to 137271722246 its reverse (642227172731), we get a palindrome (779498894977).

The spelling of 137271722246 in words is "one hundred thirty-seven billion, two hundred seventy-one million, seven hundred twenty-two thousand, two hundred forty-six".