1058143381 has 4 divisors (see below), whose sum is σ = 1059086752. Its totient is φ = 1057200012.

The previous prime is 1058143379. The next prime is 1058143397. The reversal of 1058143381 is 1833418501.

It is a happy number.

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 1058143381 - 2¹ = 1058143379 is a prime.

It is a super-3 number, since 3×1058143381³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1058143321) 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, 470001 + ... + 472246.

It is an arithmetic number, because the mean of its divisors is an integer number (264771688).

Almost surely, 2^1058143381 is an apocalyptic number.

It is an amenable number.

1058143381 is a deficient number, since it is larger than the sum of its proper divisors (943371).

1058143381 is an equidigital number, since it uses as much as digits as its factorization.

1058143381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 943370.

The product of its (nonzero) digits is 11520, while the sum is 34.

The square root of 1058143381 is about 32529.1158963781. The cubic root of 1058143381 is about 1019.0171812750.

The spelling of 1058143381 in words is "one billion, fifty-eight million, one hundred forty-three thousand, three hundred eighty-one".