137193523 has 2 divisors, whose sum is σ = 137193524. Its totient is φ = 137193522.

The previous prime is 137193493. The next prime is 137193557. The reversal of 137193523 is 325391731.

It is a happy number.

It is an a-pointer prime, because the next prime (137193557) can be obtained adding 137193523 to its sum of digits (34).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 137193523 - 2⁵ = 137193491 is a prime.

It is a plaindrome in base 13.

It is not a weakly prime, because it can be changed into another prime (137193583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68596761 + 68596762.

It is an arithmetic number, because the mean of its divisors is an integer number (68596762).

Almost surely, 2^137193523 is an apocalyptic number.

137193523 is a deficient number, since it is larger than the sum of its proper divisors (1).

137193523 is an equidigital number, since it uses as much as digits as its factorization.

137193523 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17010, while the sum is 34.

The square root of 137193523 is about 11712.9638862245. The cubic root of 137193523 is about 515.7562935350.

The spelling of 137193523 in words is "one hundred thirty-seven million, one hundred ninety-three thousand, five hundred twenty-three".