143741997 has 12 divisors (see below), whose sum is σ = 237288480. Its totient is φ = 82138248.

The previous prime is 143741993. The next prime is 143741999. The reversal of 143741997 is 799147341.

143741997 is a `hidden beast` number, since 143 + 7 + 419 + 97 = 666.

It is not a de Polignac number, because 143741997 - 2² = 143741993 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143741993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1140747 + ... + 1140872.

It is an arithmetic number, because the mean of its divisors is an integer number (19774040).

Almost surely, 2^143741997 is an apocalyptic number.

It is an amenable number.

143741997 is a deficient number, since it is larger than the sum of its proper divisors (93546483).

143741997 is a wasteful number, since it uses less digits than its factorization.

143741997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2281632 (or 2281629 counting only the distinct ones).

The product of its digits is 190512, while the sum is 45.

The square root of 143741997 is about 11989.2450554653. The cubic root of 143741997 is about 523.8350550611.

It can be divided in two parts, 1437 and 41997, that added together give a palindrome (43434).

The spelling of 143741997 in words is "one hundred forty-three million, seven hundred forty-one thousand, nine hundred ninety-seven".