1205160254 has 4 divisors (see below), whose sum is σ = 1807740384. Its totient is φ = 602580126.

The previous prime is 1205160251. The next prime is 1205160283. The reversal of 1205160254 is 4520615021.

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

It is a super-2 number, since 2×1205160254² = 2904822475642689032, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1205160251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 301290062 + ... + 301290065.

It is an arithmetic number, because the mean of its divisors is an integer number (451935096).

Almost surely, 2^1205160254 is an apocalyptic number.

1205160254 is a deficient number, since it is larger than the sum of its proper divisors (602580130).

1205160254 is an equidigital number, since it uses as much as digits as its factorization.

1205160254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 602580129.

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 1205160254 is about 34715.4181020480. The cubic root of 1205160254 is about 1064.1796099215.

Adding to 1205160254 its reverse (4520615021), we get a palindrome (5725775275).

The spelling of 1205160254 in words is "one billion, two hundred five million, one hundred sixty thousand, two hundred fifty-four".