61455369 has 8 divisors (see below), whose sum is σ = 82752192. Its totient is φ = 40564400.

The previous prime is 61455353. The next prime is 61455371. The reversal of 61455369 is 96355416.

61455369 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 61455369 - 2⁴ = 61455353 is a prime.

It is a super-2 number, since 2×61455369² = 7553524757852322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (61455319) 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 in 7 ways as a sum of consecutive naturals, for example, 101109 + ... + 101714.

It is an arithmetic number, because the mean of its divisors is an integer number (10344024).

Almost surely, 2^61455369 is an apocalyptic number.

It is an amenable number.

61455369 is a deficient number, since it is larger than the sum of its proper divisors (21296823).

61455369 is a wasteful number, since it uses less digits than its factorization.

61455369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202927.

The product of its digits is 97200, while the sum is 39.

The square root of 61455369 is about 7839.3474856011. The cubic root of 61455369 is about 394.6268312447.

The spelling of 61455369 in words is "sixty-one million, four hundred fifty-five thousand, three hundred sixty-nine".