145424177 has 2 divisors, whose sum is σ = 145424178. Its totient is φ = 145424176.

The previous prime is 145424173. The next prime is 145424179. The reversal of 145424177 is 771424541.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 102900736 + 42523441 = 10144^2 + 6521^2 .

It is a cyclic number.

It is not a de Polignac number, because 145424177 - 2² = 145424173 is a prime.

It is a super-2 number, since 2×145424177² = 42296382512254658, which contains 22 as substring.

Together with 145424179, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (145424173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72712088 + 72712089.

It is an arithmetic number, because the mean of its divisors is an integer number (72712089).

Almost surely, 2^145424177 is an apocalyptic number.

It is an amenable number.

145424177 is a deficient number, since it is larger than the sum of its proper divisors (1).

145424177 is an equidigital number, since it uses as much as digits as its factorization.

145424177 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31360, while the sum is 35.

The square root of 145424177 is about 12059.1947077738. The cubic root of 145424177 is about 525.8705761370.

The spelling of 145424177 in words is "one hundred forty-five million, four hundred twenty-four thousand, one hundred seventy-seven".