145567775 has 12 divisors (see below), whose sum is σ = 181704144. Its totient is φ = 115680000.

The previous prime is 145567769. The next prime is 145567783. The reversal of 145567775 is 577765541.

It is not a de Polignac number, because 145567775 - 2⁶ = 145567711 is a prime.

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 (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15506 + ... + 23055.

It is an arithmetic number, because the mean of its divisors is an integer number (15142012).

Almost surely, 2^145567775 is an apocalyptic number.

145567775 is a deficient number, since it is larger than the sum of its proper divisors (36136369).

145567775 is a wasteful number, since it uses less digits than its factorization.

145567775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38722 (or 38717 counting only the distinct ones).

The product of its digits is 1029000, while the sum is 47.

The square root of 145567775 is about 12065.1471188710. The cubic root of 145567775 is about 526.0436081663.

The spelling of 145567775 in words is "one hundred forty-five million, five hundred sixty-seven thousand, seven hundred seventy-five".