248356645 has 16 divisors (see below), whose sum is σ = 314933760. Its totient is φ = 187634304.

The previous prime is 248356643. The next prime is 248356663. The reversal of 248356645 is 546653842.

It is a cyclic number.

It is not a de Polignac number, because 248356645 - 2¹ = 248356643 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (248356643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4584 + ... + 22753.

It is an arithmetic number, because the mean of its divisors is an integer number (19683360).

Almost surely, 2^248356645 is an apocalyptic number.

It is an amenable number.

248356645 is a deficient number, since it is larger than the sum of its proper divisors (66577115).

248356645 is a wasteful number, since it uses less digits than its factorization.

248356645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27444.

The product of its digits is 691200, while the sum is 43.

The square root of 248356645 is about 15759.3351699873. The cubic root of 248356645 is about 628.5771576490.

It can be divided in two parts, 248356 and 645, that added together give a square (249001 = 499²).

The spelling of 248356645 in words is "two hundred forty-eight million, three hundred fifty-six thousand, six hundred forty-five".