143740071 has 12 divisors (see below), whose sum is σ = 209001520. Its totient is φ = 95191200.

The previous prime is 143740063. The next prime is 143740109. The reversal of 143740071 is 170047341.

It is not a de Polignac number, because 143740071 - 2³ = 143740063 is a prime.

It is a super-2 number, since 2×143740071² = 41322416022170082, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143740001) 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, 51526 + ... + 54243.

Almost surely, 2^143740071 is an apocalyptic number.

143740071 is a deficient number, since it is larger than the sum of its proper divisors (65261449).

143740071 is a wasteful number, since it uses less digits than its factorization.

143740071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105926 (or 105923 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 27.

The square root of 143740071 is about 11989.1647332081. The cubic root of 143740071 is about 523.8327154275.

The spelling of 143740071 in words is "one hundred forty-three million, seven hundred forty thousand, seventy-one".