7143957 has 12 divisors (see below), whose sum is σ = 10701600. Its totient is φ = 4762476.

The previous prime is 7143931. The next prime is 7143959. The reversal of 7143957 is 7593417.

It is a happy number.

It is not a de Polignac number, because 7143957 - 2¹² = 7139861 is a prime.

It is a super-2 number, since 2×7143957² = 102072243235698, which contains 22 as substring.

7143957 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7143959) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14457 + ... + 14942.

It is an arithmetic number, because the mean of its divisors is an integer number (891800).

Almost surely, 2^7143957 is an apocalyptic number.

It is an amenable number.

7143957 is a deficient number, since it is larger than the sum of its proper divisors (3557643).

7143957 is an equidigital number, since it uses as much as digits as its factorization.

7143957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29414 (or 29402 counting only the distinct ones).

The product of its digits is 26460, while the sum is 36.

The square root of 7143957 is about 2672.8181756341. The cubic root of 7143957 is about 192.5955628290.

It can be divided in two parts, 7143 and 957, that added together give a square (8100 = 90²).

The spelling of 7143957 in words is "seven million, one hundred forty-three thousand, nine hundred fifty-seven".