137912503 has 2 divisors, whose sum is σ = 137912504. Its totient is φ = 137912502.

The previous prime is 137912473. The next prime is 137912527. The reversal of 137912503 is 305219731.

It is a strong prime.

It is an emirp because it is prime and its reverse (305219731) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 137912503 - 2⁵ = 137912471 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (137912903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68956251 + 68956252.

It is an arithmetic number, because the mean of its divisors is an integer number (68956252).

Almost surely, 2^137912503 is an apocalyptic number.

137912503 is a deficient number, since it is larger than the sum of its proper divisors (1).

137912503 is an equidigital number, since it uses as much as digits as its factorization.

137912503 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5670, while the sum is 31.

The square root of 137912503 is about 11743.6154143432. The cubic root of 137912503 is about 516.6556862506.

The spelling of 137912503 in words is "one hundred thirty-seven million, nine hundred twelve thousand, five hundred three".