61453231 has 8 divisors (see below), whose sum is σ = 71121920. Its totient is φ = 52006968.

The previous prime is 61453229. The next prime is 61453241. The reversal of 61453231 is 13235416.

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 61453231 - 2¹ = 61453229 is a prime.

It is a super-2 number, since 2×61453231² = 7552999200678722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 61453196 and 61453205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61453211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55011 + ... + 56116.

It is an arithmetic number, because the mean of its divisors is an integer number (8890240).

Almost surely, 2^61453231 is an apocalyptic number.

61453231 is a deficient number, since it is larger than the sum of its proper divisors (9668689).

61453231 is a wasteful number, since it uses less digits than its factorization.

61453231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111213.

The product of its digits is 2160, while the sum is 25.

The square root of 61453231 is about 7839.2111210249. The cubic root of 61453231 is about 394.6222549050.

Adding to 61453231 its reverse (13235416), we get a palindrome (74688647).

The spelling of 61453231 in words is "sixty-one million, four hundred fifty-three thousand, two hundred thirty-one".