145574147 has 2 divisors, whose sum is σ = 145574148. Its totient is φ = 145574146.

The previous prime is 145574101. The next prime is 145574161. The reversal of 145574147 is 741475541.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 145574147 - 2⁸ = 145573891 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 145574147.

It is not a weakly prime, because it can be changed into another prime (145574647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72787073 + 72787074.

It is an arithmetic number, because the mean of its divisors is an integer number (72787074).

Almost surely, 2^145574147 is an apocalyptic number.

145574147 is a deficient number, since it is larger than the sum of its proper divisors (1).

145574147 is an equidigital number, since it uses as much as digits as its factorization.

145574147 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 78400, while the sum is 38.

The square root of 145574147 is about 12065.4111823841. The cubic root of 145574147 is about 526.0512836310.

The spelling of 145574147 in words is "one hundred forty-five million, five hundred seventy-four thousand, one hundred forty-seven".