143917157 has 2 divisors, whose sum is σ = 143917158. Its totient is φ = 143917156.

The previous prime is 143917133. The next prime is 143917171. The reversal of 143917157 is 751719341.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 128346241 + 15570916 = 11329^2 + 3946^2 .

It is a cyclic number.

It is not a de Polignac number, because 143917157 - 2¹⁰ = 143916133 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 143917157.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (143917127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71958578 + 71958579.

It is an arithmetic number, because the mean of its divisors is an integer number (71958579).

Almost surely, 2^143917157 is an apocalyptic number.

It is an amenable number.

143917157 is a deficient number, since it is larger than the sum of its proper divisors (1).

143917157 is an equidigital number, since it uses as much as digits as its factorization.

143917157 is an evil number, because the sum of its binary digits is even.

The product of its digits is 26460, while the sum is 38.

The square root of 143917157 is about 11996.5477117377. The cubic root of 143917157 is about 524.0477456348.

The spelling of 143917157 in words is "one hundred forty-three million, nine hundred seventeen thousand, one hundred fifty-seven".