8143157432 has 32 divisors (see below), whose sum is σ = 15693910320. Its totient is φ = 3958295040.

The previous prime is 8143157431. The next prime is 8143157447. The reversal of 8143157432 is 2347513418.

It is a super-2 number, since 2×8143157432² (a number of 21 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8143157431) 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, 373307 + ... + 394517.

Almost surely, 2^8143157432 is an apocalyptic number.

It is an amenable number.

8143157432 is a deficient number, since it is larger than the sum of its proper divisors (7550752888).

8143157432 is a wasteful number, since it uses less digits than its factorization.

8143157432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22551 (or 22547 counting only the distinct ones).

The product of its digits is 80640, while the sum is 38.

The square root of 8143157432 is about 90239.4449894280. Note that the first 3 decimals coincide. The cubic root of 8143157432 is about 2011.8593252080.

The spelling of 8143157432 in words is "eight billion, one hundred forty-three million, one hundred fifty-seven thousand, four hundred thirty-two".