145203475 has 24 divisors (see below), whose sum is σ = 185269392. Its totient is φ = 112828800.

The previous prime is 145203419. The next prime is 145203481. The reversal of 145203475 is 574302541.

It is not a de Polignac number, because 145203475 - 2⁹ = 145202963 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 314745 + ... + 315205.

It is an arithmetic number, because the mean of its divisors is an integer number (7719558).

Almost surely, 2^145203475 is an apocalyptic number.

145203475 is a deficient number, since it is larger than the sum of its proper divisors (40065917).

145203475 is a wasteful number, since it uses less digits than its factorization.

145203475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 807 (or 802 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 31.

The square root of 145203475 is about 12050.0404563636. The cubic root of 145203475 is about 525.6044134930.

The spelling of 145203475 in words is "one hundred forty-five million, two hundred three thousand, four hundred seventy-five".