185346542153 has 4 divisors (see below), whose sum is σ = 193405087488. Its totient is φ = 177287996820.

The previous prime is 185346542093. The next prime is 185346542159. The reversal of 185346542153 is 351245643581.

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, and also an emirpimes, since its reverse is a distinct semiprime: 351245643581 = 7 ⋅50177949083.

It is a cyclic number.

It is not a de Polignac number, because 185346542153 - 2¹⁶ = 185346476617 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 185346542098 and 185346542107.

It is not an unprimeable number, because it can be changed into a prime (185346542159) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4029272633 + ... + 4029272678.

It is an arithmetic number, because the mean of its divisors is an integer number (48351271872).

Almost surely, 2^185346542153 is an apocalyptic number.

It is an amenable number.

185346542153 is a deficient number, since it is larger than the sum of its proper divisors (8058545335).

185346542153 is an equidigital number, since it uses as much as digits as its factorization.

185346542153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8058545334.

The product of its digits is 1728000, while the sum is 47.

The spelling of 185346542153 in words is "one hundred eighty-five billion, three hundred forty-six million, five hundred forty-two thousand, one hundred fifty-three".