1030661641 has 4 divisors (see below), whose sum is σ = 1030766800. Its totient is φ = 1030556484.

The previous prime is 1030661633. The next prime is 1030661651. The reversal of 1030661641 is 1461660301.

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 not a de Polignac number, because 1030661641 - 2³ = 1030661633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1030661651) 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, 36171 + ... + 58048.

It is an arithmetic number, because the mean of its divisors is an integer number (257691700).

Almost surely, 2^1030661641 is an apocalyptic number.

It is an amenable number.

1030661641 is a deficient number, since it is larger than the sum of its proper divisors (105159).

1030661641 is an equidigital number, since it uses as much as digits as its factorization.

1030661641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105158.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 1030661641 is about 32103.9194024655. The cubic root of 1030661641 is about 1010.1178312353.

The spelling of 1030661641 in words is "one billion, thirty million, six hundred sixty-one thousand, six hundred forty-one".