245125145 has 32 divisors (see below), whose sum is σ = 316479744. Its totient is φ = 181843200.

The previous prime is 245125141. The next prime is 245125147. The reversal of 245125145 is 541521542.

It is not a de Polignac number, because 245125145 - 2² = 245125141 is a prime.

It is a super-2 number, since 2×245125145² = 120172673422542050, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (245125141) 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, 582035 + ... + 582455.

It is an arithmetic number, because the mean of its divisors is an integer number (9889992).

Almost surely, 2^245125145 is an apocalyptic number.

It is an amenable number.

245125145 is a deficient number, since it is larger than the sum of its proper divisors (71354599).

245125145 is a wasteful number, since it uses less digits than its factorization.

245125145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 593.

The product of its digits is 8000, while the sum is 29.

The square root of 245125145 is about 15656.4729425244. The cubic root of 245125145 is about 625.8389969639.

Adding to 245125145 its reverse (541521542), we get a palindrome (786646687).

The spelling of 245125145 in words is "two hundred forty-five million, one hundred twenty-five thousand, one hundred forty-five".