245623545 has 24 divisors (see below), whose sum is σ = 448156800. Its totient is φ = 124104096.

The previous prime is 245623537. The next prime is 245623597. The reversal of 245623545 is 545326542.

245623545 is a `hidden beast` number, since 24 + 5 + 623 + 5 + 4 + 5 = 666.

It is not a de Polignac number, because 245623545 - 2³ = 245623537 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 142785 + ... + 144494.

It is an arithmetic number, because the mean of its divisors is an integer number (18673200).

Almost surely, 2^245623545 is an apocalyptic number.

It is an amenable number.

245623545 is a deficient number, since it is larger than the sum of its proper divisors (202533255).

245623545 is a wasteful number, since it uses less digits than its factorization.

245623545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287309 (or 287306 counting only the distinct ones).

The product of its digits is 144000, while the sum is 36.

The square root of 245623545 is about 15672.3815994890. The cubic root of 245623545 is about 626.2628715965.

The spelling of 245623545 in words is "two hundred forty-five million, six hundred twenty-three thousand, five hundred forty-five".