1612251271 has 2 divisors, whose sum is σ = 1612251272. Its totient is φ = 1612251270.

The previous prime is 1612251229. The next prime is 1612251299. The reversal of 1612251271 is 1721522161.

It is an a-pointer prime, because the next prime (1612251299) can be obtained adding 1612251271 to its sum of digits (28).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1612251271 - 2¹⁷ = 1612120199 is a prime.

It is a super-2 number, since 2×1612251271² = 5198708321682230882, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1612251071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 806125635 + 806125636.

It is an arithmetic number, because the mean of its divisors is an integer number (806125636).

Almost surely, 2^1612251271 is an apocalyptic number.

1612251271 is a deficient number, since it is larger than the sum of its proper divisors (1).

1612251271 is an equidigital number, since it uses as much as digits as its factorization.

1612251271 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1680, while the sum is 28.

The square root of 1612251271 is about 40152.8488528523. The cubic root of 1612251271 is about 1172.5847526263.

The spelling of 1612251271 in words is "one billion, six hundred twelve million, two hundred fifty-one thousand, two hundred seventy-one".