145895457 has 8 divisors (see below), whose sum is σ = 195505600. Its totient is φ = 96774480.

The previous prime is 145895447. The next prime is 145895461. The reversal of 145895457 is 754598541.

It is a happy number.

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

It is not a de Polignac number, because 145895457 - 2²⁰ = 144846881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145895437) 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, 121594 + ... + 122787.

It is an arithmetic number, because the mean of its divisors is an integer number (24438200).

Almost surely, 2^145895457 is an apocalyptic number.

It is an amenable number.

145895457 is a deficient number, since it is larger than the sum of its proper divisors (49610143).

145895457 is a wasteful number, since it uses less digits than its factorization.

145895457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244583.

The product of its digits is 1008000, while the sum is 48.

The square root of 145895457 is about 12078.7191787871. The cubic root of 145895457 is about 526.4380311785.

The spelling of 145895457 in words is "one hundred forty-five million, eight hundred ninety-five thousand, four hundred fifty-seven".