1845312151 has 2 divisors, whose sum is σ = 1845312152. Its totient is φ = 1845312150.

The previous prime is 1845312127. The next prime is 1845312163. The reversal of 1845312151 is 1512135481.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1845312151 - 2²¹ = 1843214999 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1845312101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 922656075 + 922656076.

It is an arithmetic number, because the mean of its divisors is an integer number (922656076).

Almost surely, 2^1845312151 is an apocalyptic number.

1845312151 is a deficient number, since it is larger than the sum of its proper divisors (1).

1845312151 is an equidigital number, since it uses as much as digits as its factorization.

1845312151 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4800, while the sum is 31.

The square root of 1845312151 is about 42957.0966314066. The cubic root of 1845312151 is about 1226.5632467436.

The spelling of 1845312151 in words is "one billion, eight hundred forty-five million, three hundred twelve thousand, one hundred fifty-one".