131019253 has 4 divisors (see below), whose sum is σ = 132243840. Its totient is φ = 129794668.

The previous prime is 131019241. The next prime is 131019263. The reversal of 131019253 is 352910131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 352910131 = 7 ⋅50415733.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131019253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131019263) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 612133 + ... + 612346.

It is an arithmetic number, because the mean of its divisors is an integer number (33060960).

Almost surely, 2^131019253 is an apocalyptic number.

It is an amenable number.

131019253 is a deficient number, since it is larger than the sum of its proper divisors (1224587).

131019253 is a wasteful number, since it uses less digits than its factorization.

131019253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1224586.

The product of its (nonzero) digits is 810, while the sum is 25.

The square root of 131019253 is about 11446.3641825691. The cubic root of 131019253 is about 507.9001873153.

Adding to 131019253 its reverse (352910131), we get a palindrome (483929384).

The spelling of 131019253 in words is "one hundred thirty-one million, nineteen thousand, two hundred fifty-three".