61087951 has 8 divisors (see below), whose sum is σ = 62415360. Its totient is φ = 59770392.

The previous prime is 61087937. The next prime is 61087963. The reversal of 61087951 is 15978016.

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 61087951 - 2⁷ = 61087823 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 61087951.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61087651) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10836 + ... + 15478.

It is an arithmetic number, because the mean of its divisors is an integer number (7801920).

Almost surely, 2^61087951 is an apocalyptic number.

61087951 is a deficient number, since it is larger than the sum of its proper divisors (1327409).

61087951 is a wasteful number, since it uses less digits than its factorization.

61087951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4925.

The product of its (nonzero) digits is 15120, while the sum is 37.

The square root of 61087951 is about 7815.8781336456. The cubic root of 61087951 is about 393.8388180926.

The spelling of 61087951 in words is "sixty-one million, eighty-seven thousand, nine hundred fifty-one".