137571231623 has 8 divisors (see below), whose sum is σ = 157393512480. Its totient is φ = 117791262720.

The previous prime is 137571231601. The next prime is 137571231643. The reversal of 137571231623 is 326132175731.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 137571231623 - 2²² = 137567037319 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 (137571231643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10571018 + ... + 10584023.

It is an arithmetic number, because the mean of its divisors is an integer number (19674189060).

Almost surely, 2^137571231623 is an apocalyptic number.

137571231623 is a deficient number, since it is larger than the sum of its proper divisors (19822280857).

137571231623 is an equidigital number, since it uses as much as digits as its factorization.

137571231623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21155977.

The product of its digits is 158760, while the sum is 41.

The spelling of 137571231623 in words is "one hundred thirty-seven billion, five hundred seventy-one million, two hundred thirty-one thousand, six hundred twenty-three".