145039605 has 8 divisors (see below), whose sum is σ = 232063392. Its totient is φ = 77354448.

The previous prime is 145039513. The next prime is 145039613. The reversal of 145039605 is 506930541.

It is a happy number.

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

It is not a de Polignac number, because 145039605 - 2⁹ = 145039093 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4834639 + ... + 4834668.

It is an arithmetic number, because the mean of its divisors is an integer number (29007924).

Almost surely, 2^145039605 is an apocalyptic number.

145039605 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

145039605 is a deficient number, since it is larger than the sum of its proper divisors (87023787).

145039605 is an equidigital number, since it uses as much as digits as its factorization.

145039605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9669315.

The product of its (nonzero) digits is 16200, while the sum is 33.

The square root of 145039605 is about 12043.2389746280. The cubic root of 145039605 is about 525.4066146991.

The spelling of 145039605 in words is "one hundred forty-five million, thirty-nine thousand, six hundred five".