245621164 has 12 divisors (see below), whose sum is σ = 429987600. Its totient is φ = 122767568.

The previous prime is 245621161. The next prime is 245621171. The reversal of 245621164 is 461126542.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (245621161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4497 + ... + 22615.

It is an arithmetic number, because the mean of its divisors is an integer number (35832300).

Almost surely, 2^245621164 is an apocalyptic number.

It is an amenable number.

245621164 is a deficient number, since it is larger than the sum of its proper divisors (184366436).

245621164 is a wasteful number, since it uses less digits than its factorization.

245621164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21512 (or 21510 counting only the distinct ones).

The product of its digits is 11520, while the sum is 31.

The square root of 245621164 is about 15672.3056376527. The cubic root of 245621164 is about 626.2608479893.

The spelling of 245621164 in words is "two hundred forty-five million, six hundred twenty-one thousand, one hundred sixty-four".