136171870253 has 2 divisors, whose sum is σ = 136171870254. Its totient is φ = 136171870252.

The previous prime is 136171870097. The next prime is 136171870267. The reversal of 136171870253 is 352078171631.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 93796412644 + 42375457609 = 306262^2 + 205853^2 .

It is an emirp because it is prime and its reverse (352078171631) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 136171870253 - 2¹⁴ = 136171853869 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136171879253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68085935126 + 68085935127.

It is an arithmetic number, because the mean of its divisors is an integer number (68085935127).

Almost surely, 2^136171870253 is an apocalyptic number.

It is an amenable number.

136171870253 is a deficient number, since it is larger than the sum of its proper divisors (1).

136171870253 is an equidigital number, since it uses as much as digits as its factorization.

136171870253 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 211680, while the sum is 44.

The spelling of 136171870253 in words is "one hundred thirty-six billion, one hundred seventy-one million, eight hundred seventy thousand, two hundred fifty-three".