145295305 has 8 divisors (see below), whose sum is σ = 175104072. Its totient is φ = 115736448.

The previous prime is 145295303. The next prime is 145295309. The reversal of 145295305 is 503592541.

It can be written as a sum of positive squares in 4 ways, for example, as 22240656 + 123054649 = 4716^2 + 11093^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 145295305 - 2¹ = 145295303 is a prime.

It is a super-2 number, since 2×145295305² = 42221451310086050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145295303) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61194 + ... + 63523.

It is an arithmetic number, because the mean of its divisors is an integer number (21888009).

Almost surely, 2^145295305 is an apocalyptic number.

It is an amenable number.

145295305 is a deficient number, since it is larger than the sum of its proper divisors (29808767).

145295305 is a wasteful number, since it uses less digits than its factorization.

145295305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124955.

The product of its (nonzero) digits is 27000, while the sum is 34.

The square root of 145295305 is about 12053.8502147654. The cubic root of 145295305 is about 525.7151915626.

The spelling of 145295305 in words is "one hundred forty-five million, two hundred ninety-five thousand, three hundred five".