61241899 has 4 divisors (see below), whose sum is σ = 61317136. Its totient is φ = 61166664.

The previous prime is 61241891. The next prime is 61241903. The reversal of 61241899 is 99814216.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 61241899 - 2³ = 61241891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61241891) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36384 + ... + 38029.

It is an arithmetic number, because the mean of its divisors is an integer number (15329284).

Almost surely, 2^61241899 is an apocalyptic number.

61241899 is a deficient number, since it is larger than the sum of its proper divisors (75237).

61241899 is an equidigital number, since it uses as much as digits as its factorization.

61241899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75236.

The product of its digits is 31104, while the sum is 40.

The square root of 61241899 is about 7825.7203502297. The cubic root of 61241899 is about 394.1693788479.

The spelling of 61241899 in words is "sixty-one million, two hundred forty-one thousand, eight hundred ninety-nine".