145774305 has 12 divisors (see below), whose sum is σ = 252675540. Its totient is φ = 77746272.

The previous prime is 145774273. The next prime is 145774313. The reversal of 145774305 is 503477541.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 95179536 + 50594769 = 9756^2 + 7113^2 .

It is not a de Polignac number, because 145774305 - 2⁵ = 145774273 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 145774305.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1619670 + ... + 1619759.

It is an arithmetic number, because the mean of its divisors is an integer number (21056295).

Almost surely, 2^145774305 is an apocalyptic number.

145774305 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

145774305 is a deficient number, since it is larger than the sum of its proper divisors (106901235).

145774305 is a wasteful number, since it uses less digits than its factorization.

145774305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3239440 (or 3239437 counting only the distinct ones).

The product of its (nonzero) digits is 58800, while the sum is 36.

The square root of 145774305 is about 12073.7030359372. The cubic root of 145774305 is about 526.2922722817.

The spelling of 145774305 in words is "one hundred forty-five million, seven hundred seventy-four thousand, three hundred five".