137312503 has 2 divisors, whose sum is σ = 137312504. Its totient is φ = 137312502.

The previous prime is 137312491. The next prime is 137312531. The reversal of 137312503 is 305213731.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 137312503 - 2⁵ = 137312471 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (137312533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68656251 + 68656252.

It is an arithmetic number, because the mean of its divisors is an integer number (68656252).

Almost surely, 2^137312503 is an apocalyptic number.

137312503 is a deficient number, since it is larger than the sum of its proper divisors (1).

137312503 is an equidigital number, since it uses as much as digits as its factorization.

137312503 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1890, while the sum is 25.

The square root of 137312503 is about 11718.0417732657. The cubic root of 137312503 is about 515.9053456468.

The spelling of 137312503 in words is "one hundred thirty-seven million, three hundred twelve thousand, five hundred three".