630023141 has 4 divisors (see below), whose sum is σ = 687297984. Its totient is φ = 572748300.

The previous prime is 630023123. The next prime is 630023167. The reversal of 630023141 is 141320036.

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.

It is a cyclic number.

It is not a de Polignac number, because 630023141 - 2¹⁰ = 630022117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630023741) 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, 28637405 + ... + 28637426.

It is an arithmetic number, because the mean of its divisors is an integer number (171824496).

Almost surely, 2^630023141 is an apocalyptic number.

It is an amenable number.

630023141 is a deficient number, since it is larger than the sum of its proper divisors (57274843).

630023141 is a wasteful number, since it uses less digits than its factorization.

630023141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57274842.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 630023141 is about 25100.2617715433. The cubic root of 630023141 is about 857.2723843448.

Adding to 630023141 its reverse (141320036), we get a palindrome (771343177).

The spelling of 630023141 in words is "six hundred thirty million, twenty-three thousand, one hundred forty-one".