655402133 has 2 divisors, whose sum is σ = 655402134. Its totient is φ = 655402132.

The previous prime is 655402079. The next prime is 655402159. The reversal of 655402133 is 331204556.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 626651089 + 28751044 = 25033^2 + 5362^2 .

It is a cyclic number.

It is not a de Polignac number, because 655402133 - 2¹⁶ = 655336597 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 655402096 and 655402105.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (655402193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327701066 + 327701067.

It is an arithmetic number, because the mean of its divisors is an integer number (327701067).

Almost surely, 2^655402133 is an apocalyptic number.

It is an amenable number.

655402133 is a deficient number, since it is larger than the sum of its proper divisors (1).

655402133 is an equidigital number, since it uses as much as digits as its factorization.

655402133 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10800, while the sum is 29.

The square root of 655402133 is about 25600.8228969305. The cubic root of 655402133 is about 868.6322512600.

Adding to 655402133 its reverse (331204556), we get a palindrome (986606689).

The spelling of 655402133 in words is "six hundred fifty-five million, four hundred two thousand, one hundred thirty-three".