245861983 has 8 divisors (see below), whose sum is σ = 249799680. Its totient is φ = 241945080.

The previous prime is 245861969. The next prime is 245861999. The reversal of 245861983 is 389168542.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 245861983 - 2¹³ = 245853791 is a prime.

It is a super-2 number, since 2×245861983² = 120896229369384578, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245861963) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19566 + ... + 29572.

It is an arithmetic number, because the mean of its divisors is an integer number (31224960).

Almost surely, 2^245861983 is an apocalyptic number.

245861983 is a deficient number, since it is larger than the sum of its proper divisors (3937697).

245861983 is a wasteful number, since it uses less digits than its factorization.

245861983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10397.

The product of its digits is 414720, while the sum is 46.

The square root of 245861983 is about 15679.9867028005. The cubic root of 245861983 is about 626.4654533886.

It can be divided in two parts, 24586 and 1983, that added together give a square (26569 = 163²).

The spelling of 245861983 in words is "two hundred forty-five million, eight hundred sixty-one thousand, nine hundred eighty-three".