631043741 has 8 divisors (see below), whose sum is σ = 653240280. Its totient is φ = 608876352.

The previous prime is 631043729. The next prime is 631043747. The reversal of 631043741 is 147340136.

It can be written as a sum of positive squares in 4 ways, for example, as 27604516 + 603439225 = 5254^2 + 24565^2 .

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 631043741 - 2¹⁰ = 631042717 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (631043747) 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, 42671 + ... + 55523.

It is an arithmetic number, because the mean of its divisors is an integer number (81655035).

Almost surely, 2^631043741 is an apocalyptic number.

It is an amenable number.

631043741 is a deficient number, since it is larger than the sum of its proper divisors (22196539).

631043741 is a wasteful number, since it uses less digits than its factorization.

631043741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14575.

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 631043741 is about 25120.5840099310. The cubic root of 631043741 is about 857.7350446913.

Adding to 631043741 its reverse (147340136), we get a palindrome (778383877).

The spelling of 631043741 in words is "six hundred thirty-one million, forty-three thousand, seven hundred forty-one".