1642763153 has 2 divisors, whose sum is σ = 1642763154. Its totient is φ = 1642763152.

The previous prime is 1642763147. The next prime is 1642763197. The reversal of 1642763153 is 3513672461.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1414662544 + 228100609 = 37612^2 + 15103^2 .

It is a cyclic number.

It is not a de Polignac number, because 1642763153 - 2²⁰ = 1641714577 is a prime.

It is not a weakly prime, because it can be changed into another prime (1642763053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 821381576 + 821381577.

It is an arithmetic number, because the mean of its divisors is an integer number (821381577).

Almost surely, 2^1642763153 is an apocalyptic number.

It is an amenable number.

1642763153 is a deficient number, since it is larger than the sum of its proper divisors (1).

1642763153 is an equidigital number, since it uses as much as digits as its factorization.

1642763153 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 90720, while the sum is 38.

The square root of 1642763153 is about 40531.0147047912. The cubic root of 1642763153 is about 1179.9356359128.

The spelling of 1642763153 in words is "one billion, six hundred forty-two million, seven hundred sixty-three thousand, one hundred fifty-three".