61481895 has 8 divisors (see below), whose sum is σ = 98371056. Its totient is φ = 32790336.

The previous prime is 61481881. The next prime is 61481923. The reversal of 61481895 is 59818416.

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

It is not a de Polignac number, because 61481895 - 2¹⁰ = 61480871 is a prime.

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, 2049382 + ... + 2049411.

It is an arithmetic number, because the mean of its divisors is an integer number (12296382).

Almost surely, 2^61481895 is an apocalyptic number.

61481895 is a deficient number, since it is larger than the sum of its proper divisors (36889161).

61481895 is a wasteful number, since it uses less digits than its factorization.

61481895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4098801.

The product of its digits is 69120, while the sum is 42.

The square root of 61481895 is about 7841.0391530715. The cubic root of 61481895 is about 394.6836007116.

The spelling of 61481895 in words is "sixty-one million, four hundred eighty-one thousand, eight hundred ninety-five".