145575671 has 4 divisors (see below), whose sum is σ = 151905072. Its totient is φ = 139246272.

The previous prime is 145575667. The next prime is 145575697. The reversal of 145575671 is 176575541.

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 145575671 - 2² = 145575667 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 (145575611) 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, 3164666 + ... + 3164711.

It is an arithmetic number, because the mean of its divisors is an integer number (37976268).

Almost surely, 2^145575671 is an apocalyptic number.

145575671 is a deficient number, since it is larger than the sum of its proper divisors (6329401).

145575671 is an equidigital number, since it uses as much as digits as its factorization.

145575671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6329400.

The product of its digits is 147000, while the sum is 41.

The square root of 145575671 is about 12065.4743379612. The cubic root of 145575671 is about 526.0531193493.

The spelling of 145575671 in words is "one hundred forty-five million, five hundred seventy-five thousand, six hundred seventy-one".