61298147 has 2 divisors, whose sum is σ = 61298148. Its totient is φ = 61298146.

The previous prime is 61298137. The next prime is 61298249. The reversal of 61298147 is 74189216.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61298147 - 2⁴ = 61298131 is a prime.

It is a Chen prime.

It is an alternating number because its digits alternate between even and odd.

It is a self number, because there is not a number n which added to its sum of digits gives 61298147.

It is not a weakly prime, because it can be changed into another prime (61298117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30649073 + 30649074.

It is an arithmetic number, because the mean of its divisors is an integer number (30649074).

Almost surely, 2^61298147 is an apocalyptic number.

61298147 is a deficient number, since it is larger than the sum of its proper divisors (1).

61298147 is an equidigital number, since it uses as much as digits as its factorization.

61298147 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24192, while the sum is 38.

The square root of 61298147 is about 7829.3133159939. The cubic root of 61298147 is about 394.2900176877.

The spelling of 61298147 in words is "sixty-one million, two hundred ninety-eight thousand, one hundred forty-seven".