145873775 has 12 divisors (see below), whose sum is σ = 181347024. Its totient is φ = 116400000.

The previous prime is 145873747. The next prime is 145873823. The reversal of 145873775 is 577378541.

It is not a de Polignac number, because 145873775 - 2⁶ = 145873711 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 (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2750 + ... + 17300.

It is an arithmetic number, because the mean of its divisors is an integer number (15112252).

Almost surely, 2^145873775 is an apocalyptic number.

145873775 is a deficient number, since it is larger than the sum of its proper divisors (35473249).

145873775 is a wasteful number, since it uses less digits than its factorization.

145873775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14962 (or 14957 counting only the distinct ones).

The product of its digits is 823200, while the sum is 47.

The square root of 145873775 is about 12077.8216165002. The cubic root of 145873775 is about 526.4119513286.

The spelling of 145873775 in words is "one hundred forty-five million, eight hundred seventy-three thousand, seven hundred seventy-five".