145424000446 has 4 divisors (see below), whose sum is σ = 218136000672. Its totient is φ = 72712000222.

The previous prime is 145424000377. The next prime is 145424000461. The reversal of 145424000446 is 644000424541.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 644000424541 = 757 ⋅850727113.

It is a super-2 number, since 2×145424000446² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36356000110 + ... + 36356000113.

It is an arithmetic number, because the mean of its divisors is an integer number (54534000168).

Almost surely, 2^145424000446 is an apocalyptic number.

145424000446 is a deficient number, since it is larger than the sum of its proper divisors (72712000226).

145424000446 is an equidigital number, since it uses as much as digits as its factorization.

145424000446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72712000225.

The product of its (nonzero) digits is 61440, while the sum is 34.

Adding to 145424000446 its reverse (644000424541), we get a palindrome (789424424987).

The spelling of 145424000446 in words is "one hundred forty-five billion, four hundred twenty-four million, four hundred forty-six", and thus it is an aban number.