61200389 has 2 divisors, whose sum is σ = 61200390. Its totient is φ = 61200388.

The previous prime is 61200371. The next prime is 61200407. The reversal of 61200389 is 98300216.

It is a balanced prime because it is at equal distance from previous prime (61200371) and next prime (61200407).

It can be written as a sum of positive squares in only one way, i.e., 34316164 + 26884225 = 5858^2 + 5185^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61200389 is a prime.

It is a super-2 number, since 2×61200389² = 7490975227502642, which contains 22 as substring.

It is equal to p_3629108 and since 61200389 and 3629108 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61200089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30600194 + 30600195.

It is an arithmetic number, because the mean of its divisors is an integer number (30600195).

Almost surely, 2^61200389 is an apocalyptic number.

It is an amenable number.

61200389 is a deficient number, since it is larger than the sum of its proper divisors (1).

61200389 is an equidigital number, since it uses as much as digits as its factorization.

61200389 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 61200389 is about 7823.0677486521. The cubic root of 61200389 is about 394.0803022010.

The spelling of 61200389 in words is "sixty-one million, two hundred thousand, three hundred eighty-nine".