245161637 has 16 divisors (see below), whose sum is σ = 284266752. Its totient is φ = 207100800.

The previous prime is 245161627. The next prime is 245161639. The reversal of 245161637 is 736161542.

It is a cyclic number.

It is not a de Polignac number, because 245161637 - 2¹⁶ = 245096101 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 245161597 and 245161606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245161639) 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, 143963 + ... + 145655.

It is an arithmetic number, because the mean of its divisors is an integer number (17766672).

Almost surely, 2^245161637 is an apocalyptic number.

It is an amenable number.

245161637 is a deficient number, since it is larger than the sum of its proper divisors (39105115).

245161637 is a wasteful number, since it uses less digits than its factorization.

245161637 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1988.

The product of its digits is 30240, while the sum is 35.

The square root of 245161637 is about 15657.6382957329. The cubic root of 245161637 is about 625.8700518270.

The spelling of 245161637 in words is "two hundred forty-five million, one hundred sixty-one thousand, six hundred thirty-seven".