145254804 has 24 divisors (see below), whose sum is σ = 339127488. Its totient is φ = 48389760.

The previous prime is 145254799. The next prime is 145254869. The reversal of 145254804 is 408452541.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31324 + ... + 35660.

It is an arithmetic number, because the mean of its divisors is an integer number (14130312).

Almost surely, 2^145254804 is an apocalyptic number.

It is an amenable number.

145254804 is an abundant number, since it is smaller than the sum of its proper divisors (193872684).

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

145254804 is a wasteful number, since it uses less digits than its factorization.

145254804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7135 (or 7133 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 33.

The square root of 145254804 is about 12052.1700950493. The cubic root of 145254804 is about 525.6663393998. Note that the first 3 decimals are identical.

The spelling of 145254804 in words is "one hundred forty-five million, two hundred fifty-four thousand, eight hundred four".