151231510191 has 4 divisors (see below), whose sum is σ = 201642013592. Its totient is φ = 100821006792.

The previous prime is 151231510189. The next prime is 151231510201. The reversal of 151231510191 is 191015132151.

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

It is not a de Polignac number, because 151231510191 - 2¹ = 151231510189 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 (151231510151) 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, 25205251696 + ... + 25205251701.

It is an arithmetic number, because the mean of its divisors is an integer number (50410503398).

Almost surely, 2^151231510191 is an apocalyptic number.

151231510191 is a deficient number, since it is larger than the sum of its proper divisors (50410503401).

151231510191 is an equidigital number, since it uses as much as digits as its factorization.

151231510191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50410503400.

The product of its (nonzero) digits is 1350, while the sum is 30.

The spelling of 151231510191 in words is "one hundred fifty-one billion, two hundred thirty-one million, five hundred ten thousand, one hundred ninety-one".