145429285 has 4 divisors (see below), whose sum is σ = 174515148. Its totient is φ = 116343424.

The previous prime is 145429279. The next prime is 145429301. The reversal of 145429285 is 582924541.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 42224004 + 103205281 = 6498^2 + 10159^2 .

It is a cyclic number.

It is not a de Polignac number, because 145429285 - 2¹⁹ = 144904997 is a prime.

It is a super-2 number, since 2×145429285² = 42299353871222450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14542924 + ... + 14542933.

It is an arithmetic number, because the mean of its divisors is an integer number (43628787).

Almost surely, 2^145429285 is an apocalyptic number.

It is an amenable number.

145429285 is a deficient number, since it is larger than the sum of its proper divisors (29085863).

145429285 is an equidigital number, since it uses as much as digits as its factorization.

145429285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29085862.

The product of its digits is 115200, while the sum is 40.

The square root of 145429285 is about 12059.4064945170. The cubic root of 145429285 is about 525.8767331037.

The spelling of 145429285 in words is "one hundred forty-five million, four hundred twenty-nine thousand, two hundred eighty-five".