61150471 has 2 divisors, whose sum is σ = 61150472. Its totient is φ = 61150470.

The previous prime is 61150459. The next prime is 61150477. The reversal of 61150471 is 17405116.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 61150471 - 2²⁵ = 27596039 is a prime.

It is a super-3 number, since 3×61150471³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61150477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30575235 + 30575236.

It is an arithmetic number, because the mean of its divisors is an integer number (30575236).

Almost surely, 2^61150471 is an apocalyptic number.

61150471 is a deficient number, since it is larger than the sum of its proper divisors (1).

61150471 is an equidigital number, since it uses as much as digits as its factorization.

61150471 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 840, while the sum is 25.

The square root of 61150471 is about 7819.8766614314. The cubic root of 61150471 is about 393.9731293999.

Adding to 61150471 its reverse (17405116), we get a palindrome (78555587).

The spelling of 61150471 in words is "sixty-one million, one hundred fifty thousand, four hundred seventy-one".