145605146241 has 4 divisors (see below), whose sum is σ = 194140194992. Its totient is φ = 97070097492.

The previous prime is 145605146237. The next prime is 145605146249. The reversal of 145605146241 is 142641506541.

145605146241 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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: 142641506541 = 3 ⋅47547168847.

It is not a de Polignac number, because 145605146241 - 2² = 145605146237 is a prime.

It is a super-2 number, since 2×145605146241² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 145605146241.

It is not an unprimeable number, because it can be changed into a prime (145605146249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24267524371 + ... + 24267524376.

It is an arithmetic number, because the mean of its divisors is an integer number (48535048748).

Almost surely, 2^145605146241 is an apocalyptic number.

It is an amenable number.

145605146241 is a deficient number, since it is larger than the sum of its proper divisors (48535048751).

145605146241 is an equidigital number, since it uses as much as digits as its factorization.

145605146241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48535048750.

The product of its (nonzero) digits is 115200, while the sum is 39.

The spelling of 145605146241 in words is "one hundred forty-five billion, six hundred five million, one hundred forty-six thousand, two hundred forty-one".