145303611 has 4 divisors (see below), whose sum is σ = 193738152. Its totient is φ = 96869072.

The previous prime is 145303567. The next prime is 145303619. The reversal of 145303611 is 116303541.

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

It is a cyclic number.

It is not a de Polignac number, because 145303611 - 2⁹ = 145303099 is a prime.

It is a super-2 number, since 2×145303611² = 42226278739278642, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (145303619) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24217266 + ... + 24217271.

It is an arithmetic number, because the mean of its divisors is an integer number (48434538).

Almost surely, 2^145303611 is an apocalyptic number.

145303611 is a deficient number, since it is larger than the sum of its proper divisors (48434541).

145303611 is an equidigital number, since it uses as much as digits as its factorization.

145303611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48434540.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 145303611 is about 12054.1947470580. The cubic root of 145303611 is about 525.7252091085.

The spelling of 145303611 in words is "one hundred forty-five million, three hundred three thousand, six hundred eleven".