61090273 has 2 divisors, whose sum is σ = 61090274. Its totient is φ = 61090272.

The previous prime is 61090247. The next prime is 61090283. The reversal of 61090273 is 37209016.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 59783824 + 1306449 = 7732^2 + 1143^2 .

It is a cyclic number.

It is not a de Polignac number, because 61090273 - 2²⁵ = 27535841 is a prime.

It is not a weakly prime, because it can be changed into another prime (61090283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30545136 + 30545137.

It is an arithmetic number, because the mean of its divisors is an integer number (30545137).

Almost surely, 2^61090273 is an apocalyptic number.

It is an amenable number.

61090273 is a deficient number, since it is larger than the sum of its proper divisors (1).

61090273 is an equidigital number, since it uses as much as digits as its factorization.

61090273 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2268, while the sum is 28.

The square root of 61090273 is about 7816.0266760036. The cubic root of 61090273 is about 393.8438080682.

Adding to 61090273 its reverse (37209016), we get a palindrome (98299289).

The spelling of 61090273 in words is "sixty-one million, ninety thousand, two hundred seventy-three".