145134177 has 4 divisors (see below), whose sum is σ = 193512240. Its totient is φ = 96756116.

The previous prime is 145134173. The next prime is 145134181. The reversal of 145134177 is 771431541.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (145134173) and next prime (145134181).

It is a cyclic number.

It is not a de Polignac number, because 145134177 - 2² = 145134173 is a prime.

It is not an unprimeable number, because it can be changed into a prime (145134173) 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 in 3 ways as a sum of consecutive naturals, for example, 24189027 + ... + 24189032.

It is an arithmetic number, because the mean of its divisors is an integer number (48378060).

Almost surely, 2^145134177 is an apocalyptic number.

It is an amenable number.

145134177 is a deficient number, since it is larger than the sum of its proper divisors (48378063).

145134177 is an equidigital number, since it uses as much as digits as its factorization.

145134177 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48378062.

The product of its digits is 11760, while the sum is 33.

The square root of 145134177 is about 12047.1646871785. The cubic root of 145134177 is about 525.5207857182.

The spelling of 145134177 in words is "one hundred forty-five million, one hundred thirty-four thousand, one hundred seventy-seven".