61146667 has 2 divisors, whose sum is σ = 61146668. Its totient is φ = 61146666.

The previous prime is 61146661. The next prime is 61146689. The reversal of 61146667 is 76664116.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61146667 - 2¹⁹ = 60622379 is a prime.

It is not a weakly prime, because it can be changed into another prime (61146661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30573333 + 30573334.

It is an arithmetic number, because the mean of its divisors is an integer number (30573334).

Almost surely, 2^61146667 is an apocalyptic number.

61146667 is a deficient number, since it is larger than the sum of its proper divisors (1).

61146667 is an equidigital number, since it uses as much as digits as its factorization.

61146667 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36288, while the sum is 37.

The square root of 61146667 is about 7819.6334313061. The cubic root of 61146667 is about 393.9649599079.

It can be divided in two parts, 611 and 46667, that added together give a triangular number (47278 = T₃₀₇).

The spelling of 61146667 in words is "sixty-one million, one hundred forty-six thousand, six hundred sixty-seven".