145439167 has 4 divisors (see below), whose sum is σ = 153093880. Its totient is φ = 137784456.

The previous prime is 145439153. The next prime is 145439171. The reversal of 145439167 is 761934541.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 145439167 - 2²⁷ = 11221439 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145439117) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 3827328 + ... + 3827365.

It is an arithmetic number, because the mean of its divisors is an integer number (38273470).

Almost surely, 2^145439167 is an apocalyptic number.

145439167 is a deficient number, since it is larger than the sum of its proper divisors (7654713).

145439167 is an equidigital number, since it uses as much as digits as its factorization.

145439167 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7654712.

The product of its digits is 90720, while the sum is 40.

The square root of 145439167 is about 12059.8162092131. The cubic root of 145439167 is about 525.8886440384. Note that the first 3 decimals are identical.

The spelling of 145439167 in words is "one hundred forty-five million, four hundred thirty-nine thousand, one hundred sixty-seven".