137535440423 has 2 divisors, whose sum is σ = 137535440424. Its totient is φ = 137535440422.

The previous prime is 137535440407. The next prime is 137535440437. The reversal of 137535440423 is 324044535731.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 137535440423 - 2⁴ = 137535440407 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (137535440443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68767720211 + 68767720212.

It is an arithmetic number, because the mean of its divisors is an integer number (68767720212).

Almost surely, 2^137535440423 is an apocalyptic number.

137535440423 is a deficient number, since it is larger than the sum of its proper divisors (1).

137535440423 is an equidigital number, since it uses as much as digits as its factorization.

137535440423 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 604800, while the sum is 41.

The spelling of 137535440423 in words is "one hundred thirty-seven billion, five hundred thirty-five million, four hundred forty thousand, four hundred twenty-three".