1687261153 has 2 divisors, whose sum is σ = 1687261154. Its totient is φ = 1687261152.

The previous prime is 1687261127. The next prime is 1687261171. The reversal of 1687261153 is 3511627861.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1666027489 + 21233664 = 40817^2 + 4608^2 .

It is a cyclic number.

It is not a de Polignac number, because 1687261153 - 2¹³ = 1687252961 is a prime.

It is not a weakly prime, because it can be changed into another prime (1687261183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 843630576 + 843630577.

It is an arithmetic number, because the mean of its divisors is an integer number (843630577).

Almost surely, 2^1687261153 is an apocalyptic number.

It is an amenable number.

1687261153 is a deficient number, since it is larger than the sum of its proper divisors (1).

1687261153 is an equidigital number, since it uses as much as digits as its factorization.

1687261153 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 60480, while the sum is 40.

The square root of 1687261153 is about 41076.2845569070. The cubic root of 1687261153 is about 1190.4946165512.

The spelling of 1687261153 in words is "one billion, six hundred eighty-seven million, two hundred sixty-one thousand, one hundred fifty-three".