1581096151 has 2 divisors, whose sum is σ = 1581096152. Its totient is φ = 1581096150.

The previous prime is 1581096137. The next prime is 1581096239. The reversal of 1581096151 is 1516901851.

It is a weak prime.

It is an emirp because it is prime and its reverse (1516901851) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1581096151 - 2⁵ = 1581096119 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1581096151.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1581091151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 790548075 + 790548076.

It is an arithmetic number, because the mean of its divisors is an integer number (790548076).

Almost surely, 2^1581096151 is an apocalyptic number.

1581096151 is a deficient number, since it is larger than the sum of its proper divisors (1).

1581096151 is an equidigital number, since it uses as much as digits as its factorization.

1581096151 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10800, while the sum is 37.

The square root of 1581096151 is about 39762.9997736589. Note that the first 3 decimals coincide. The cubic root of 1581096151 is about 1164.9825685837.

The spelling of 1581096151 in words is "one billion, five hundred eighty-one million, ninety-six thousand, one hundred fifty-one".