145054404 has 144 divisors (see below), whose sum is σ = 438721920. Its totient is φ = 39889920.

The previous prime is 145054373. The next prime is 145054409. The reversal of 145054404 is 404450541.

It is not an unprimeable number, because it can be changed into a prime (145054409) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 194857 + ... + 195599.

It is an arithmetic number, because the mean of its divisors is an integer number (3046680).

Almost surely, 2^145054404 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 145054404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (219360960).

145054404 is an abundant number, since it is smaller than the sum of its proper divisors (293667516).

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

145054404 is a wasteful number, since it uses less digits than its factorization.

145054404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 810 (or 805 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 27.

The square root of 145054404 is about 12043.8533700805. The cubic root of 145054404 is about 525.4244839058.

The spelling of 145054404 in words is "one hundred forty-five million, fifty-four thousand, four hundred four".