61486499 has 2 divisors, whose sum is σ = 61486500. Its totient is φ = 61486498.

The previous prime is 61486487. The next prime is 61486531. The reversal of 61486499 is 99468416.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61486499 - 2¹² = 61482403 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (61480499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30743249 + 30743250.

It is an arithmetic number, because the mean of its divisors is an integer number (30743250).

Almost surely, 2^61486499 is an apocalyptic number.

61486499 is a deficient number, since it is larger than the sum of its proper divisors (1).

61486499 is an equidigital number, since it uses as much as digits as its factorization.

61486499 is an evil number, because the sum of its binary digits is even.

The product of its digits is 373248, while the sum is 47.

The square root of 61486499 is about 7841.3327311115. The cubic root of 61486499 is about 394.6934522728.

The spelling of 61486499 in words is "sixty-one million, four hundred eighty-six thousand, four hundred ninety-nine".