145784134961 has 4 divisors (see below), whose sum is σ = 150486849024. Its totient is φ = 141081420900.

The previous prime is 145784134907. The next prime is 145784134987. The reversal of 145784134961 is 169431487541.

145784134961 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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145784134961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145784134361) 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, 2351356985 + ... + 2351357046.

It is an arithmetic number, because the mean of its divisors is an integer number (37621712256).

Almost surely, 2^145784134961 is an apocalyptic number.

It is an amenable number.

145784134961 is a deficient number, since it is larger than the sum of its proper divisors (4702714063).

145784134961 is an equidigital number, since it uses as much as digits as its factorization.

145784134961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4702714062.

The product of its digits is 2903040, while the sum is 53.

The spelling of 145784134961 in words is "one hundred forty-five billion, seven hundred eighty-four million, one hundred thirty-four thousand, nine hundred sixty-one".