145332727 has 4 divisors (see below), whose sum is σ = 145359880. Its totient is φ = 145305576.

The previous prime is 145332709. The next prime is 145332749. The reversal of 145332727 is 727233541.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 727233541 = 97 ⋅7497253.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145332727 is a prime.

It is a super-2 number, since 2×145332727² = 42243203074513058, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 145332692 and 145332701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145332787) 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, 2577 + ... + 17242.

It is an arithmetic number, because the mean of its divisors is an integer number (36339970).

Almost surely, 2^145332727 is an apocalyptic number.

145332727 is a deficient number, since it is larger than the sum of its proper divisors (27153).

145332727 is an equidigital number, since it uses as much as digits as its factorization.

145332727 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27152.

The product of its digits is 35280, while the sum is 34.

The square root of 145332727 is about 12055.4023989247. The cubic root of 145332727 is about 525.7603217777.

The spelling of 145332727 in words is "one hundred forty-five million, three hundred thirty-two thousand, seven hundred twenty-seven".