145446331401 has 80 divisors (see below), whose sum is σ = 263192307840. Its totient is φ = 78141335040.

The previous prime is 145446331337. The next prime is 145446331403. The reversal of 145446331401 is 104133644541.

145446331401 is a `hidden beast` number, since 1 + 4 + 5 + 4 + 4 + 633 + 14 + 0 + 1 = 666.

It is not a de Polignac number, because 145446331401 - 2⁶ = 145446331337 is a prime.

It is not an unprimeable number, because it can be changed into a prime (145446331403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 9834030 + ... + 9848808.

It is an arithmetic number, because the mean of its divisors is an integer number (3289903848).

Almost surely, 2^145446331401 is an apocalyptic number.

It is an amenable number.

145446331401 is a deficient number, since it is larger than the sum of its proper divisors (117745976439).

145446331401 is a wasteful number, since it uses less digits than its factorization.

145446331401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15836 (or 15827 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

Adding to 145446331401 its reverse (104133644541), we get a palindrome (249579975942).

The spelling of 145446331401 in words is "one hundred forty-five billion, four hundred forty-six million, three hundred thirty-one thousand, four hundred one".