145574547 has 8 divisors (see below), whose sum is σ = 194218944. Its totient is φ = 96989928.

The previous prime is 145574503. The next prime is 145574549. The reversal of 145574547 is 745475541.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 145574547 - 2¹¹ = 145572499 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 145574499 and 145574508.

It is not an unprimeable number, because it can be changed into a prime (145574549) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 8913 + ... + 19250.

It is an arithmetic number, because the mean of its divisors is an integer number (24277368).

Almost surely, 2^145574547 is an apocalyptic number.

145574547 is a deficient number, since it is larger than the sum of its proper divisors (48644397).

145574547 is a wasteful number, since it uses less digits than its factorization.

145574547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29889.

The product of its digits is 392000, while the sum is 42.

The square root of 145574547 is about 12065.4277586831. The cubic root of 145574547 is about 526.0517654481.

The spelling of 145574547 in words is "one hundred forty-five million, five hundred seventy-four thousand, five hundred forty-seven".