245181157 has 16 divisors (see below), whose sum is σ = 280143360. Its totient is φ = 212573952.

The previous prime is 245181151. The next prime is 245181163. The reversal of 245181157 is 751181542.

It is an interprime number because it is at equal distance from previous prime (245181151) and next prime (245181163).

It is a cyclic number.

It is not a de Polignac number, because 245181157 - 2¹⁹ = 244656869 is a prime.

It is a super-2 number, since 2×245181157² = 120227599495717298, 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 (245181151) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 158128 + ... + 159670.

It is an arithmetic number, because the mean of its divisors is an integer number (17508960).

Almost surely, 2^245181157 is an apocalyptic number.

It is an amenable number.

245181157 is a deficient number, since it is larger than the sum of its proper divisors (34962203).

245181157 is a wasteful number, since it uses less digits than its factorization.

245181157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2292.

The product of its digits is 11200, while the sum is 34.

The square root of 245181157 is about 15658.2616212656. The cubic root of 245181157 is about 625.8866621735.

The spelling of 245181157 in words is "two hundred forty-five million, one hundred eighty-one thousand, one hundred fifty-seven".