1072027261 has 2 divisors, whose sum is σ = 1072027262. Its totient is φ = 1072027260.

The previous prime is 1072027247. The next prime is 1072027267. The reversal of 1072027261 is 1627202701.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 762091236 + 309936025 = 27606^2 + 17605^2 .

It is an emirp because it is prime and its reverse (1627202701) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1072027261 - 2¹⁹ = 1071502973 is a prime.

It is a super-2 number, since 2×1072027261² = 2298484896654324242, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1072027267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 536013630 + 536013631.

It is an arithmetic number, because the mean of its divisors is an integer number (536013631).

Almost surely, 2^1072027261 is an apocalyptic number.

It is an amenable number.

1072027261 is a deficient number, since it is larger than the sum of its proper divisors (1).

1072027261 is an equidigital number, since it uses as much as digits as its factorization.

1072027261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2352, while the sum is 28.

The square root of 1072027261 is about 32741.8273924960. The cubic root of 1072027261 is about 1023.4546647321.

Adding to 1072027261 its reverse (1627202701), we get a palindrome (2699229962).

The spelling of 1072027261 in words is "one billion, seventy-two million, twenty-seven thousand, two hundred sixty-one".