136140235331461 has 4 divisors (see below), whose sum is σ = 137461985189152. Its totient is φ = 134818485473772.

The previous prime is 136140235331411. The next prime is 136140235331621. The reversal of 136140235331461 is 164133532041631.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 136140235331461 - 2⁷ = 136140235331333 is a prime.

It is a super-2 number, since 2×136140235331461² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136140235331411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 660874928691 + ... + 660874928896.

It is an arithmetic number, because the mean of its divisors is an integer number (34365496297288).

Almost surely, 2^{136140235331461} is an apocalyptic number.

It is an amenable number.

136140235331461 is a deficient number, since it is larger than the sum of its proper divisors (1321749857691).

136140235331461 is a wasteful number, since it uses less digits than its factorization.

136140235331461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1321749857690.

The product of its (nonzero) digits is 466560, while the sum is 43.

The spelling of 136140235331461 in words is "one hundred thirty-six trillion, one hundred forty billion, two hundred thirty-five million, three hundred thirty-one thousand, four hundred sixty-one".