61232489 has 2 divisors, whose sum is σ = 61232490. Its totient is φ = 61232488.

The previous prime is 61232461. The next prime is 61232491. The reversal of 61232489 is 98423216.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 61152400 + 80089 = 7820^2 + 283^2 .

It is a cyclic number.

It is not a de Polignac number, because 61232489 - 2¹⁶ = 61166953 is a prime.

Together with 61232491, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (61232389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30616244 + 30616245.

It is an arithmetic number, because the mean of its divisors is an integer number (30616245).

Almost surely, 2^61232489 is an apocalyptic number.

It is an amenable number.

61232489 is a deficient number, since it is larger than the sum of its proper divisors (1).

61232489 is an equidigital number, since it uses as much as digits as its factorization.

61232489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20736, while the sum is 35.

The square root of 61232489 is about 7825.1191045249. The cubic root of 61232489 is about 394.1491893812.

The spelling of 61232489 in words is "sixty-one million, two hundred thirty-two thousand, four hundred eighty-nine".