140072571 has 20 divisors (see below), whose sum is σ = 221554872. Its totient is φ = 87887808.

The previous prime is 140072551. The next prime is 140072593. The reversal of 140072571 is 175270041.

140072571 is a `hidden beast` number, since 1 + 400 + 7 + 257 + 1 = 666.

It is not a de Polignac number, because 140072571 - 2¹¹ = 140070523 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (140072501) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 49485 + ... + 52238.

Almost surely, 2^140072571 is an apocalyptic number.

140072571 is a deficient number, since it is larger than the sum of its proper divisors (81482301).

140072571 is a wasteful number, since it uses less digits than its factorization.

140072571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101752 (or 101743 counting only the distinct ones).

The product of its (nonzero) digits is 1960, while the sum is 27.

The square root of 140072571 is about 11835.2258533583. The cubic root of 140072571 is about 519.3391148035.

The spelling of 140072571 in words is "one hundred forty million, seventy-two thousand, five hundred seventy-one".