137545607617 has 4 divisors (see below), whose sum is σ = 150049753776. Its totient is φ = 125041461460.

The previous prime is 137545607587. The next prime is 137545607621. The reversal of 137545607617 is 716706545731.

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, and also an emirpimes, since its reverse is a distinct semiprime: 716706545731 = 11 ⋅65155140521.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-137545607617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (137545607417) 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, 6252073063 + ... + 6252073084.

It is an arithmetic number, because the mean of its divisors is an integer number (37512438444).

Almost surely, 2^137545607617 is an apocalyptic number.

It is an amenable number.

137545607617 is a deficient number, since it is larger than the sum of its proper divisors (12504146159).

137545607617 is a wasteful number, since it uses less digits than its factorization.

137545607617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12504146158.

The product of its (nonzero) digits is 3704400, while the sum is 52.

The spelling of 137545607617 in words is "one hundred thirty-seven billion, five hundred forty-five million, six hundred seven thousand, six hundred seventeen".