6191031253 has 32 divisors (see below), whose sum is σ = 7515573120. Its totient is φ = 5033871360.

The previous prime is 6191031251. The next prime is 6191031263. The reversal of 6191031253 is 3521301916.

It is a happy number.

It is not a de Polignac number, because 6191031253 - 2¹ = 6191031251 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6191031251) 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, 287113 + ... + 307921.

It is an arithmetic number, because the mean of its divisors is an integer number (234861660).

Almost surely, 2^6191031253 is an apocalyptic number.

It is an amenable number.

6191031253 is a deficient number, since it is larger than the sum of its proper divisors (1324541867).

6191031253 is a wasteful number, since it uses less digits than its factorization.

6191031253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20917.

The product of its (nonzero) digits is 4860, while the sum is 31.

The square root of 6191031253 is about 78683.1065286571. The cubic root of 6191031253 is about 1836.2042945563.

The spelling of 6191031253 in words is "six billion, one hundred ninety-one million, thirty-one thousand, two hundred fifty-three".