136670851 has 2 divisors, whose sum is σ = 136670852. Its totient is φ = 136670850.

The previous prime is 136670791. The next prime is 136670861. The reversal of 136670851 is 158076631.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-136670851 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 136670851.

It is not a weakly prime, because it can be changed into another prime (136670861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68335425 + 68335426.

It is an arithmetic number, because the mean of its divisors is an integer number (68335426).

Almost surely, 2^136670851 is an apocalyptic number.

136670851 is a deficient number, since it is larger than the sum of its proper divisors (1).

136670851 is an equidigital number, since it uses as much as digits as its factorization.

136670851 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 136670851 is about 11690.6309068416. The cubic root of 136670851 is about 515.1004937896.

The spelling of 136670851 in words is "one hundred thirty-six million, six hundred seventy thousand, eight hundred fifty-one".