145597161 has 8 divisors (see below), whose sum is σ = 195547104. Its totient is φ = 96356000.

The previous prime is 145597157. The next prime is 145597181. The reversal of 145597161 is 161795541.

145597161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 145597161 - 2² = 145597157 is a prime.

It is not an unprimeable number, because it can be changed into a prime (145597141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 176715 + ... + 177536.

It is an arithmetic number, because the mean of its divisors is an integer number (24443388).

Almost surely, 2^145597161 is an apocalyptic number.

It is an amenable number.

145597161 is a deficient number, since it is larger than the sum of its proper divisors (49949943).

145597161 is a wasteful number, since it uses less digits than its factorization.

145597161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354391.

The product of its digits is 37800, while the sum is 39.

The square root of 145597161 is about 12066.3648627082. The cubic root of 145597161 is about 526.0790035400.

The spelling of 145597161 in words is "one hundred forty-five million, five hundred ninety-seven thousand, one hundred sixty-one".