137992027 has 2 divisors, whose sum is σ = 137992028. Its totient is φ = 137992026.

The previous prime is 137991989. The next prime is 137992069. The reversal of 137992027 is 720299731.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 137992027 - 2¹⁵ = 137959259 is a prime.

It is not a weakly prime, because it can be changed into another prime (137902027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68996013 + 68996014.

It is an arithmetic number, because the mean of its divisors is an integer number (68996014).

Almost surely, 2^137992027 is an apocalyptic number.

137992027 is a deficient number, since it is larger than the sum of its proper divisors (1).

137992027 is an equidigital number, since it uses as much as digits as its factorization.

137992027 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 47628, while the sum is 40.

The square root of 137992027 is about 11747.0007661530. Note that the first 3 decimals coincide. The cubic root of 137992027 is about 516.7549729511.

The spelling of 137992027 in words is "one hundred thirty-seven million, nine hundred ninety-two thousand, twenty-seven".