245090745 has 32 divisors (see below), whose sum is σ = 450748800. Its totient is φ = 126205632.

The previous prime is 245090731. The next prime is 245090761. The reversal of 245090745 is 547090542.

It is not a de Polignac number, because 245090745 - 2⁹ = 245090233 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 27387 + ... + 35216.

It is an arithmetic number, because the mean of its divisors is an integer number (14085900).

Almost surely, 2^245090745 is an apocalyptic number.

It is an amenable number.

245090745 is a deficient number, since it is larger than the sum of its proper divisors (205658055).

245090745 is a wasteful number, since it uses less digits than its factorization.

245090745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62646 (or 62640 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 245090745 is about 15655.3743168281. The cubic root of 245090745 is about 625.8097195804.

The spelling of 245090745 in words is "two hundred forty-five million, ninety thousand, seven hundred forty-five".