265662149 has 2 divisors, whose sum is σ = 265662150. Its totient is φ = 265662148.

The previous prime is 265662107. The next prime is 265662151. The reversal of 265662149 is 941266562.

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., 191822500 + 73839649 = 13850^2 + 8593^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-265662149 is a prime.

It is a super-2 number, since 2×265662149² = 141152754822596402, which contains 22 as substring.

Together with 265662151, 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 (265665149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132831074 + 132831075.

It is an arithmetic number, because the mean of its divisors is an integer number (132831075).

Almost surely, 2^265662149 is an apocalyptic number.

It is an amenable number.

265662149 is a deficient number, since it is larger than the sum of its proper divisors (1).

265662149 is an equidigital number, since it uses as much as digits as its factorization.

265662149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 155520, while the sum is 41.

The square root of 265662149 is about 16299.1456524568. The cubic root of 265662149 is about 642.8503634958.

The spelling of 265662149 in words is "two hundred sixty-five million, six hundred sixty-two thousand, one hundred forty-nine".