948661481 has 4 divisors (see below), whose sum is σ = 948723600. Its totient is φ = 948599364.

The previous prime is 948661471. The next prime is 948661513. The reversal of 948661481 is 184166849.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-948661481 is a prime.

It is a super-2 number, since 2×948661481² = 1799917211066226722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (948661451) 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, 9530 + ... + 44588.

It is an arithmetic number, because the mean of its divisors is an integer number (237180900).

Almost surely, 2^948661481 is an apocalyptic number.

It is an amenable number.

948661481 is a deficient number, since it is larger than the sum of its proper divisors (62119).

948661481 is a wasteful number, since it uses less digits than its factorization.

948661481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62118.

The product of its digits is 331776, while the sum is 47.

The square root of 948661481 is about 30800.3487155584. The cubic root of 948661481 is about 982.5856615007.

The spelling of 948661481 in words is "nine hundred forty-eight million, six hundred sixty-one thousand, four hundred eighty-one".