145646614361 has 4 divisors (see below), whose sum is σ = 145650136500. Its totient is φ = 145643092224.

The previous prime is 145646614343. The next prime is 145646614369. The reversal of 145646614361 is 163416646541.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 163416646541 = 183581 ⋅890161.

It can be written as a sum of positive squares in 2 ways, for example, as 51520374361 + 94126240000 = 226981^2 + 306800^2 .

It is a cyclic number.

It is not a de Polignac number, because 145646614361 - 2¹⁴ = 145646597977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145646614369) 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, 1698296 + ... + 1781993.

It is an arithmetic number, because the mean of its divisors is an integer number (36412534125).

Almost surely, 2^145646614361 is an apocalyptic number.

It is an amenable number.

145646614361 is a deficient number, since it is larger than the sum of its proper divisors (3522139).

145646614361 is an equidigital number, since it uses as much as digits as its factorization.

145646614361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3522138.

The product of its digits is 1244160, while the sum is 47.

The spelling of 145646614361 in words is "one hundred forty-five billion, six hundred forty-six million, six hundred fourteen thousand, three hundred sixty-one".