245516145 has 32 divisors (see below), whose sum is σ = 468467712. Its totient is φ = 107355072.

The previous prime is 245516113. The next prime is 245516149. The reversal of 245516145 is 541615542.

245516145 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 245516145 - 2⁵ = 245516113 is a prime.

It is a super-2 number, since 2×245516145² = 120556354911322050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (245516149) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 48417 + ... + 53246.

It is an arithmetic number, because the mean of its divisors is an integer number (14639616).

Almost surely, 2^245516145 is an apocalyptic number.

It is an amenable number.

245516145 is a deficient number, since it is larger than the sum of its proper divisors (222951567).

245516145 is a wasteful number, since it uses less digits than its factorization.

245516145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101701.

The product of its digits is 24000, while the sum is 33.

The square root of 245516145 is about 15668.9548151751. The cubic root of 245516145 is about 626.1715795366.

The spelling of 245516145 in words is "two hundred forty-five million, five hundred sixteen thousand, one hundred forty-five".