145727611 has 4 divisors (see below), whose sum is σ = 145773792. Its totient is φ = 145681432.

The previous prime is 145727579. The next prime is 145727629. The reversal of 145727611 is 116727541.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 116727541 = 7 ⋅16675363.

It is a cyclic number.

It is not a de Polignac number, because 145727611 - 2⁵ = 145727579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145727641) 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, 17980 + ... + 24793.

It is an arithmetic number, because the mean of its divisors is an integer number (36443448).

Almost surely, 2^145727611 is an apocalyptic number.

145727611 is a deficient number, since it is larger than the sum of its proper divisors (46181).

145727611 is an equidigital number, since it uses as much as digits as its factorization.

145727611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46180.

The product of its digits is 11760, while the sum is 34.

The square root of 145727611 is about 12071.7691744002. The cubic root of 145727611 is about 526.2360728124.

The spelling of 145727611 in words is "one hundred forty-five million, seven hundred twenty-seven thousand, six hundred eleven".