145547403 has 16 divisors (see below), whose sum is σ = 197701632. Its totient is φ = 95220000.

The previous prime is 145547393. The next prime is 145547431. The reversal of 145547403 is 304745541.

It is not a de Polignac number, because 145547403 - 2²⁵ = 111992971 is a prime.

It is not an unprimeable number, because it can be changed into a prime (145547443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 125878 + ... + 127028.

It is an arithmetic number, because the mean of its divisors is an integer number (12356352).

Almost surely, 2^145547403 is an apocalyptic number.

145547403 is a deficient number, since it is larger than the sum of its proper divisors (52154229).

145547403 is a wasteful number, since it uses less digits than its factorization.

145547403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1906.

The product of its (nonzero) digits is 33600, while the sum is 33.

The square root of 145547403 is about 12064.3028393687. The cubic root of 145547403 is about 526.0190673402.

The spelling of 145547403 in words is "one hundred forty-five million, five hundred forty-seven thousand, four hundred three".