145884774 has 32 divisors (see below), whose sum is σ = 351002880. Its totient is φ = 39487392.

The previous prime is 145884751. The next prime is 145884787. The reversal of 145884774 is 477488541.

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 15 ways as a sum of consecutive naturals, for example, 90609 + ... + 92204.

It is an arithmetic number, because the mean of its divisors is an integer number (10968840).

Almost surely, 2^145884774 is an apocalyptic number.

145884774 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

145884774 is an abundant number, since it is smaller than the sum of its proper divisors (205118106).

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

145884774 is a wasteful number, since it uses less digits than its factorization.

145884774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182844.

The product of its digits is 1003520, while the sum is 48.

The square root of 145884774 is about 12078.2769466510. The cubic root of 145884774 is about 526.4251816243.

The spelling of 145884774 in words is "one hundred forty-five million, eight hundred eighty-four thousand, seven hundred seventy-four".