1053155261 has 2 divisors, whose sum is σ = 1053155262. Its totient is φ = 1053155260.

The previous prime is 1053155231. The next prime is 1053155263. The reversal of 1053155261 is 1625513501.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1023616036 + 29539225 = 31994^2 + 5435^2 .

It is an emirp because it is prime and its reverse (1625513501) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1053155261 - 2¹⁸ = 1052893117 is a prime.

It is a super-2 number, since 2×1053155261² = 2218272007543956242, which contains 22 as substring.

Together with 1053155263, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1053155263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 526577630 + 526577631.

It is an arithmetic number, because the mean of its divisors is an integer number (526577631).

Almost surely, 2^1053155261 is an apocalyptic number.

It is an amenable number.

1053155261 is a deficient number, since it is larger than the sum of its proper divisors (1).

1053155261 is an equidigital number, since it uses as much as digits as its factorization.

1053155261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4500, while the sum is 29.

The square root of 1053155261 is about 32452.3537050859. The cubic root of 1053155261 is about 1017.4134326197.

Adding to 1053155261 its reverse (1625513501), we get a palindrome (2678668762).

The spelling of 1053155261 in words is "one billion, fifty-three million, one hundred fifty-five thousand, two hundred sixty-one".