145411775 has 12 divisors (see below), whose sum is σ = 183003912. Its totient is φ = 114591840.

The previous prime is 145411759. The next prime is 145411781. The reversal of 145411775 is 577114541.

It is not a de Polignac number, because 145411775 - 2⁴ = 145411759 is a prime.

It is a super-2 number, since 2×145411775² = 42289168617301250, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41732 + ... + 45081.

It is an arithmetic number, because the mean of its divisors is an integer number (15250326).

Almost surely, 2^145411775 is an apocalyptic number.

145411775 is a deficient number, since it is larger than the sum of its proper divisors (37592137).

145411775 is an equidigital number, since it uses as much as digits as its factorization.

145411775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86890 (or 86885 counting only the distinct ones).

The product of its digits is 19600, while the sum is 35.

The square root of 145411775 is about 12058.6804833696. The cubic root of 145411775 is about 525.8556266918.

The spelling of 145411775 in words is "one hundred forty-five million, four hundred eleven thousand, seven hundred seventy-five".