137345573 has 2 divisors, whose sum is σ = 137345574. Its totient is φ = 137345572.

The previous prime is 137345563. The next prime is 137345599. The reversal of 137345573 is 375543731.

It is a happy number.

137345573 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 132319009 + 5026564 = 11503^2 + 2242^2 .

It is an emirp because it is prime and its reverse (375543731) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 137345573 - 2⁸ = 137345317 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (137345503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68672786 + 68672787.

It is an arithmetic number, because the mean of its divisors is an integer number (68672787).

Almost surely, 2^137345573 is an apocalyptic number.

It is an amenable number.

137345573 is a deficient number, since it is larger than the sum of its proper divisors (1).

137345573 is an equidigital number, since it uses as much as digits as its factorization.

137345573 is an evil number, because the sum of its binary digits is even.

The product of its digits is 132300, while the sum is 38.

The square root of 137345573 is about 11719.4527602615. The cubic root of 137345573 is about 515.9467587737.

The spelling of 137345573 in words is "one hundred thirty-seven million, three hundred forty-five thousand, five hundred seventy-three".