131145254 has 4 divisors (see below), whose sum is σ = 196717884. Its totient is φ = 65572626.

The previous prime is 131145251. The next prime is 131145257. The reversal of 131145254 is 452541131.

131145254 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 (131145251) and next prime (131145257).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131145251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32786312 + ... + 32786315.

It is an arithmetic number, because the mean of its divisors is an integer number (49179471).

Almost surely, 2^131145254 is an apocalyptic number.

131145254 is a deficient number, since it is larger than the sum of its proper divisors (65572630).

131145254 is an equidigital number, since it uses as much as digits as its factorization.

131145254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65572629.

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

The square root of 131145254 is about 11451.8668347130. The cubic root of 131145254 is about 508.0629507415.

Adding to 131145254 its reverse (452541131), we get a palindrome (583686385).

The spelling of 131145254 in words is "one hundred thirty-one million, one hundred forty-five thousand, two hundred fifty-four".