137986007 has 2 divisors, whose sum is σ = 137986008. Its totient is φ = 137986006.

The previous prime is 137986001. The next prime is 137986021. The reversal of 137986007 is 700689731.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-137986007 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (137986001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68993003 + 68993004.

It is an arithmetic number, because the mean of its divisors is an integer number (68993004).

Almost surely, 2^137986007 is an apocalyptic number.

137986007 is a deficient number, since it is larger than the sum of its proper divisors (1).

137986007 is an equidigital number, since it uses as much as digits as its factorization.

137986007 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 63504, while the sum is 41.

The square root of 137986007 is about 11746.7445277404. The cubic root of 137986007 is about 516.7474582411.

The spelling of 137986007 in words is "one hundred thirty-seven million, nine hundred eighty-six thousand, seven".