130887921 has 8 divisors (see below), whose sum is σ = 180146944. Its totient is φ = 84443760.

The previous prime is 130887893. The next prime is 130887923. The reversal of 130887921 is 129788031.

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

It is not a de Polignac number, because 130887921 - 2¹⁴ = 130871537 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 130887921.

It is not an unprimeable number, because it can be changed into a prime (130887923) 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, 703606 + ... + 703791.

It is an arithmetic number, because the mean of its divisors is an integer number (22518368).

Almost surely, 2^130887921 is an apocalyptic number.

It is an amenable number.

130887921 is a deficient number, since it is larger than the sum of its proper divisors (49259023).

130887921 is a wasteful number, since it uses less digits than its factorization.

130887921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1407431.

The product of its (nonzero) digits is 24192, while the sum is 39.

The square root of 130887921 is about 11440.6259007102. The cubic root of 130887921 is about 507.7304263937.

The spelling of 130887921 in words is "one hundred thirty million, eight hundred eighty-seven thousand, nine hundred twenty-one".