137355623 has 2 divisors, whose sum is σ = 137355624. Its totient is φ = 137355622.

The previous prime is 137355619. The next prime is 137355649. The reversal of 137355623 is 326553731.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 137355623 - 2² = 137355619 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (137355613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68677811 + 68677812.

It is an arithmetic number, because the mean of its divisors is an integer number (68677812).

Almost surely, 2^137355623 is an apocalyptic number.

137355623 is a deficient number, since it is larger than the sum of its proper divisors (1).

137355623 is an equidigital number, since it uses as much as digits as its factorization.

137355623 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 56700, while the sum is 35.

The square root of 137355623 is about 11719.8815267050. The cubic root of 137355623 is about 515.9593429397.

The spelling of 137355623 in words is "one hundred thirty-seven million, three hundred fifty-five thousand, six hundred twenty-three".