140552071 has 4 divisors (see below), whose sum is σ = 153329544. Its totient is φ = 127774600.

The previous prime is 140552051. The next prime is 140552077. The reversal of 140552071 is 170255041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 170255041 = 11 ⋅15477731.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140552071 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140552077) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6388720 + ... + 6388741.

It is an arithmetic number, because the mean of its divisors is an integer number (38332386).

Almost surely, 2^140552071 is an apocalyptic number.

140552071 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

140552071 is a deficient number, since it is larger than the sum of its proper divisors (12777473).

140552071 is a wasteful number, since it uses less digits than its factorization.

140552071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12777472.

The product of its (nonzero) digits is 1400, while the sum is 25.

The square root of 140552071 is about 11855.4658702221. The cubic root of 140552071 is about 519.9310448506.

The spelling of 140552071 in words is "one hundred forty million, five hundred fifty-two thousand, seventy-one".