145527775 has 12 divisors (see below), whose sum is σ = 180840112. Its totient is φ = 116173440.

The previous prime is 145527751. The next prime is 145527779. The reversal of 145527775 is 577725541.

It is not a de Polignac number, because 145527775 - 2¹¹ = 145525727 is a prime.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145527779) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6199 + ... + 18151.

Almost surely, 2^145527775 is an apocalyptic number.

145527775 is a deficient number, since it is larger than the sum of its proper divisors (35312337).

145527775 is a wasteful number, since it uses less digits than its factorization.

145527775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12450 (or 12445 counting only the distinct ones).

The product of its digits is 343000, while the sum is 43.

The square root of 145527775 is about 12063.4893376668. The cubic root of 145527775 is about 525.9954205965.

The spelling of 145527775 in words is "one hundred forty-five million, five hundred twenty-seven thousand, seven hundred seventy-five".