137485487 has 2 divisors, whose sum is σ = 137485488. Its totient is φ = 137485486.

The previous prime is 137485459. The next prime is 137485529. The reversal of 137485487 is 784584731.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 137485487 - 2²⁴ = 120708271 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (137488487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68742743 + 68742744.

It is an arithmetic number, because the mean of its divisors is an integer number (68742744).

Almost surely, 2^137485487 is an apocalyptic number.

137485487 is a deficient number, since it is larger than the sum of its proper divisors (1).

137485487 is an equidigital number, since it uses as much as digits as its factorization.

137485487 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 752640, while the sum is 47.

The square root of 137485487 is about 11725.4205468290. The cubic root of 137485487 is about 516.1218977180.

The spelling of 137485487 in words is "one hundred thirty-seven million, four hundred eighty-five thousand, four hundred eighty-seven".