245801087 has 4 divisors (see below), whose sum is σ = 280915536. Its totient is φ = 210686640.

The previous prime is 245801063. The next prime is 245801111. The reversal of 245801087 is 780108542.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (245801063) and next prime (245801111).

It is a cyclic number.

It is not a de Polignac number, because 245801087 - 2¹⁶ = 245735551 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245801047) 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, 17557214 + ... + 17557227.

It is an arithmetic number, because the mean of its divisors is an integer number (70228884).

Almost surely, 2^245801087 is an apocalyptic number.

245801087 is a deficient number, since it is larger than the sum of its proper divisors (35114449).

245801087 is an equidigital number, since it uses as much as digits as its factorization.

245801087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35114448.

The product of its (nonzero) digits is 17920, while the sum is 35.

The square root of 245801087 is about 15678.0447441637. The cubic root of 245801087 is about 626.4137273621.

The spelling of 245801087 in words is "two hundred forty-five million, eight hundred one thousand, eighty-seven".