1655672153 has 2 divisors, whose sum is σ = 1655672154. Its totient is φ = 1655672152.

The previous prime is 1655672111. The next prime is 1655672159. The reversal of 1655672153 is 3512765561.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1652585104 + 3087049 = 40652^2 + 1757^2 .

It is an emirp because it is prime and its reverse (3512765561) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1655672153 - 2¹⁴ = 1655655769 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1655672153.

It is not a weakly prime, because it can be changed into another prime (1655672159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 827836076 + 827836077.

It is an arithmetic number, because the mean of its divisors is an integer number (827836077).

Almost surely, 2^1655672153 is an apocalyptic number.

It is an amenable number.

1655672153 is a deficient number, since it is larger than the sum of its proper divisors (1).

1655672153 is an equidigital number, since it uses as much as digits as its factorization.

1655672153 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 189000, while the sum is 41.

The square root of 1655672153 is about 40689.9514991109. The cubic root of 1655672153 is about 1183.0182601927.

The spelling of 1655672153 in words is "one billion, six hundred fifty-five million, six hundred seventy-two thousand, one hundred fifty-three".