137404560173 has 4 divisors (see below), whose sum is σ = 138123955968. Its totient is φ = 136685164380.

The previous prime is 137404560131. The next prime is 137404560203. The reversal of 137404560173 is 371065404731.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 137404560173 - 2¹² = 137404556077 is a prime.

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 137404560173.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137404560103) 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, 359697611 + ... + 359697992.

It is an arithmetic number, because the mean of its divisors is an integer number (34530988992).

Almost surely, 2^137404560173 is an apocalyptic number.

It is an amenable number.

137404560173 is a deficient number, since it is larger than the sum of its proper divisors (719395795).

137404560173 is an equidigital number, since it uses as much as digits as its factorization.

137404560173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 719395794.

The product of its (nonzero) digits is 211680, while the sum is 41.

The spelling of 137404560173 in words is "one hundred thirty-seven billion, four hundred four million, five hundred sixty thousand, one hundred seventy-three".