245140664 has 8 divisors (see below), whose sum is σ = 459638760. Its totient is φ = 122570328.

The previous prime is 245140657. The next prime is 245140667. The reversal of 245140664 is 466041542.

245140664 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 245140664.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245140667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15321284 + ... + 15321299.

It is an arithmetic number, because the mean of its divisors is an integer number (57454845).

Almost surely, 2^245140664 is an apocalyptic number.

It is an amenable number.

245140664 is a deficient number, since it is larger than the sum of its proper divisors (214498096).

245140664 is a wasteful number, since it uses less digits than its factorization.

245140664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30642589 (or 30642585 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 32.

The square root of 245140664 is about 15656.9685443894. The cubic root of 245140664 is about 625.8522040823.

The spelling of 245140664 in words is "two hundred forty-five million, one hundred forty thousand, six hundred sixty-four".