7158144381 has 8 divisors (see below), whose sum is σ = 9544710144. Its totient is φ = 4771837440.

The previous prime is 7158144359. The next prime is 7158144401. The reversal of 7158144381 is 1834418517.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 7158144381 - 2²⁵ = 7124589949 is a prime.

It is a super-2 number, since 2×7158144381² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7158146381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13245 + ... + 120381.

It is an arithmetic number, because the mean of its divisors is an integer number (1193088768).

Almost surely, 2^7158144381 is an apocalyptic number.

It is an amenable number.

7158144381 is a deficient number, since it is larger than the sum of its proper divisors (2386565763).

7158144381 is a wasteful number, since it uses less digits than its factorization.

7158144381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129411.

The product of its digits is 107520, while the sum is 42.

The square root of 7158144381 is about 84605.8176545798. The cubic root of 7158144381 is about 1927.2297213555.

The spelling of 7158144381 in words is "seven billion, one hundred fifty-eight million, one hundred forty-four thousand, three hundred eighty-one".