145205774 has 8 divisors (see below), whose sum is σ = 248924208. Its totient is φ = 62231040.

The previous prime is 145205773. The next prime is 145205777. The reversal of 145205774 is 477502541.

145205774 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145205773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5185907 + ... + 5185934.

It is an arithmetic number, because the mean of its divisors is an integer number (31115526).

Almost surely, 2^145205774 is an apocalyptic number.

145205774 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

145205774 is a deficient number, since it is larger than the sum of its proper divisors (103718434).

145205774 is a wasteful number, since it uses less digits than its factorization.

145205774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10371850.

The product of its (nonzero) digits is 39200, while the sum is 35.

The square root of 145205774 is about 12050.1358498566. The cubic root of 145205774 is about 525.6071874353.

The spelling of 145205774 in words is "one hundred forty-five million, two hundred five thousand, seven hundred seventy-four".