136572043 has 4 divisors (see below), whose sum is σ = 139148928. Its totient is φ = 133995160.

The previous prime is 136572041. The next prime is 136572061. The reversal of 136572043 is 340275631.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 340275631 = 151 ⋅2253481.

It is a cyclic number.

It is not a de Polignac number, because 136572043 - 2¹ = 136572041 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 136571996 and 136572014.

It is not an unprimeable number, because it can be changed into a prime (136572041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1288363 + ... + 1288468.

It is an arithmetic number, because the mean of its divisors is an integer number (34787232).

Almost surely, 2^136572043 is an apocalyptic number.

136572043 is a deficient number, since it is larger than the sum of its proper divisors (2576885).

136572043 is an equidigital number, since it uses as much as digits as its factorization.

136572043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2576884.

The product of its (nonzero) digits is 15120, while the sum is 31.

The square root of 136572043 is about 11686.4041946186. The cubic root of 136572043 is about 514.9763309573.

The spelling of 136572043 in words is "one hundred thirty-six million, five hundred seventy-two thousand, forty-three".