145238734404 has 81 divisors (see below), whose sum is σ = 387586866303. Its totient is φ = 45851143824.

The previous prime is 145238734393. The next prime is 145238734411. The reversal of 145238734404 is 404437832541.

The square root of 145238734404 is 381102.

It is a perfect power (a square), and thus also a powerful number.

145238734404 is a `hidden beast` number, since 1 + 4 + 5 + 238 + 7 + 3 + 4 + 404 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 145238734404.

It is an unprimeable number.

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 26 ways as a sum of consecutive naturals, for example, 43443957 + ... + 43447299.

Almost surely, 2^145238734404 is an apocalyptic number.

145238734404 is the 381102-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 145238734404

145238734404 is an abundant number, since it is smaller than the sum of its proper divisors (242348131899).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145238734404 is an equidigital number, since it uses as much as digits as its factorization.

145238734404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6734 (or 3367 counting only the distinct ones).

The product of its (nonzero) digits is 1290240, while the sum is 45.

The spelling of 145238734404 in words is "one hundred forty-five billion, two hundred thirty-eight million, seven hundred thirty-four thousand, four hundred four".