61501469 has 2 divisors, whose sum is σ = 61501470. Its totient is φ = 61501468.

The previous prime is 61501463. The next prime is 61501501. The reversal of 61501469 is 96410516.

61501469 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (61501501) can be obtained adding 61501469 to its sum of digits (32).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 61387225 + 114244 = 7835^2 + 338^2 .

It is a cyclic number.

It is not a de Polignac number, because 61501469 - 2²⁰ = 60452893 is a prime.

It is a super-2 number, since 2×61501469² = 7564861378315922, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61501463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30750734 + 30750735.

It is an arithmetic number, because the mean of its divisors is an integer number (30750735).

Almost surely, 2^61501469 is an apocalyptic number.

It is an amenable number.

61501469 is a deficient number, since it is larger than the sum of its proper divisors (1).

61501469 is an equidigital number, since it uses as much as digits as its factorization.

61501469 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 61501469 is about 7842.2872301389. The cubic root of 61501469 is about 394.7254814262.

The spelling of 61501469 in words is "sixty-one million, five hundred one thousand, four hundred sixty-nine".