61499245 has 8 divisors (see below), whose sum is σ = 75515616. Its totient is φ = 48055056.

The previous prime is 61499173. The next prime is 61499279. The reversal of 61499245 is 54299416.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 61499245 - 2⁷ = 61499117 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 61499198 and 61499207.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 142807 + ... + 143236.

It is an arithmetic number, because the mean of its divisors is an integer number (9439452).

Almost surely, 2^61499245 is an apocalyptic number.

It is an amenable number.

61499245 is a deficient number, since it is larger than the sum of its proper divisors (14016371).

61499245 is a wasteful number, since it uses less digits than its factorization.

61499245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286091.

The product of its digits is 77760, while the sum is 40.

The square root of 61499245 is about 7842.1454334895. The cubic root of 61499245 is about 394.7207233824.

The spelling of 61499245 in words is "sixty-one million, four hundred ninety-nine thousand, two hundred forty-five".