137630287 has 2 divisors, whose sum is σ = 137630288. Its totient is φ = 137630286.

The previous prime is 137630231. The next prime is 137630291. The reversal of 137630287 is 782036731.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 137630287 - 2⁷ = 137630159 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (137630387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68815143 + 68815144.

It is an arithmetic number, because the mean of its divisors is an integer number (68815144).

Almost surely, 2^137630287 is an apocalyptic number.

137630287 is a deficient number, since it is larger than the sum of its proper divisors (1).

137630287 is an equidigital number, since it uses as much as digits as its factorization.

137630287 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 42336, while the sum is 37.

The square root of 137630287 is about 11731.5935405213. The cubic root of 137630287 is about 516.3030276950.

The spelling of 137630287 in words is "one hundred thirty-seven million, six hundred thirty thousand, two hundred eighty-seven".