61461271 has 2 divisors, whose sum is σ = 61461272. Its totient is φ = 61461270.

The previous prime is 61461263. The next prime is 61461277. The reversal of 61461271 is 17216416.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 61461271 - 2³ = 61461263 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61461277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30730635 + 30730636.

It is an arithmetic number, because the mean of its divisors is an integer number (30730636).

Almost surely, 2^61461271 is an apocalyptic number.

61461271 is a deficient number, since it is larger than the sum of its proper divisors (1).

61461271 is an equidigital number, since it uses as much as digits as its factorization.

61461271 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2016, while the sum is 28.

The square root of 61461271 is about 7839.7239109550. The cubic root of 61461271 is about 394.6394637890.

Adding to 61461271 its reverse (17216416), we get a palindrome (78677687).

The spelling of 61461271 in words is "sixty-one million, four hundred sixty-one thousand, two hundred seventy-one".