145625171 has 2 divisors, whose sum is σ = 145625172. Its totient is φ = 145625170.

The previous prime is 145625149. The next prime is 145625287. The reversal of 145625171 is 171526541.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 145625171 - 2¹⁴ = 145608787 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (145625131) 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, 72812585 + 72812586.

It is an arithmetic number, because the mean of its divisors is an integer number (72812586).

Almost surely, 2^145625171 is an apocalyptic number.

145625171 is a deficient number, since it is larger than the sum of its proper divisors (1).

145625171 is an equidigital number, since it uses as much as digits as its factorization.

145625171 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8400, while the sum is 32.

The square root of 145625171 is about 12067.5254712803. The cubic root of 145625171 is about 526.1127370917.

The spelling of 145625171 in words is "one hundred forty-five million, six hundred twenty-five thousand, one hundred seventy-one".