1072616261 has 2 divisors, whose sum is σ = 1072616262. Its totient is φ = 1072616260.

The previous prime is 1072616239. The next prime is 1072616267. The reversal of 1072616261 is 1626162701.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 847916161 + 224700100 = 29119^2 + 14990^2 .

It is a cyclic number.

It is not a de Polignac number, because 1072616261 - 2⁶ = 1072616197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1072616267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 536308130 + 536308131.

It is an arithmetic number, because the mean of its divisors is an integer number (536308131).

Almost surely, 2^1072616261 is an apocalyptic number.

It is an amenable number.

1072616261 is a deficient number, since it is larger than the sum of its proper divisors (1).

1072616261 is an equidigital number, since it uses as much as digits as its factorization.

1072616261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 1072616261 is about 32750.8207683411. The cubic root of 1072616261 is about 1023.6420680605.

Adding to 1072616261 its reverse (1626162701), we get a palindrome (2698778962).

The spelling of 1072616261 in words is "one billion, seventy-two million, six hundred sixteen thousand, two hundred sixty-one".