245145146 has 8 divisors (see below), whose sum is σ = 368363424. Its totient is φ = 122357340.

The previous prime is 245145119. The next prime is 245145157. The reversal of 245145146 is 641541542.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×245145146² = 120192285214722632, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106190 + ... + 108473.

It is an arithmetic number, because the mean of its divisors is an integer number (46045428).

Almost surely, 2^245145146 is an apocalyptic number.

245145146 is a deficient number, since it is larger than the sum of its proper divisors (123218278).

245145146 is a wasteful number, since it uses less digits than its factorization.

245145146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215236.

The product of its digits is 19200, while the sum is 32.

The square root of 245145146 is about 15657.1116748907. Note that the first 3 decimals coincide. The cubic root of 245145146 is about 625.8560182904.

Adding to 245145146 its reverse (641541542), we get a palindrome (886686688).

The spelling of 245145146 in words is "two hundred forty-five million, one hundred forty-five thousand, one hundred forty-six".