145327777 has 12 divisors (see below), whose sum is σ = 176406336. Its totient is φ = 119149800.

The previous prime is 145327769. The next prime is 145327801. The reversal of 145327777 is 777723541.

It is not a de Polignac number, because 145327777 - 2³ = 145327769 is a prime.

It is a super-2 number, since 2×145327777² = 42240325535523458, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145327717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 63349 + ... + 65602.

It is an arithmetic number, because the mean of its divisors is an integer number (14700528).

Almost surely, 2^145327777 is an apocalyptic number.

It is an amenable number.

145327777 is a deficient number, since it is larger than the sum of its proper divisors (31078559).

145327777 is a wasteful number, since it uses less digits than its factorization.

145327777 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128988 (or 128981 counting only the distinct ones).

The product of its digits is 288120, while the sum is 43.

The square root of 145327777 is about 12055.1970950292. The cubic root of 145327777 is about 525.7543526172.

The spelling of 145327777 in words is "one hundred forty-five million, three hundred twenty-seven thousand, seven hundred seventy-seven".