61469851 has 2 divisors, whose sum is σ = 61469852. Its totient is φ = 61469850.

The previous prime is 61469819. The next prime is 61469893. The reversal of 61469851 is 15896416.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61469851 - 2⁵ = 61469819 is a prime.

It is not a weakly prime, because it can be changed into another prime (61469951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30734925 + 30734926.

It is an arithmetic number, because the mean of its divisors is an integer number (30734926).

Almost surely, 2^61469851 is an apocalyptic number.

61469851 is a deficient number, since it is larger than the sum of its proper divisors (1).

61469851 is an equidigital number, since it uses as much as digits as its factorization.

61469851 is an evil number, because the sum of its binary digits is even.

The product of its digits is 51840, while the sum is 40.

The square root of 61469851 is about 7840.2711050065. The cubic root of 61469851 is about 394.6578268383.

The spelling of 61469851 in words is "sixty-one million, four hundred sixty-nine thousand, eight hundred fifty-one".