140271497 has 16 divisors (see below), whose sum is σ = 148316160. Its totient is φ = 132483600.

The previous prime is 140271491. The next prime is 140271517. The reversal of 140271497 is 794172041.

140271497 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 140271497 - 2¹² = 140267401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140271491) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 495518 + ... + 495800.

It is an arithmetic number, because the mean of its divisors is an integer number (9269760).

Almost surely, 2^140271497 is an apocalyptic number.

It is an amenable number.

140271497 is a deficient number, since it is larger than the sum of its proper divisors (8044663).

140271497 is a wasteful number, since it uses less digits than its factorization.

140271497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 644.

The product of its (nonzero) digits is 14112, while the sum is 35.

The square root of 140271497 is about 11843.6268516025. The cubic root of 140271497 is about 519.5848473902.

The spelling of 140271497 in words is "one hundred forty million, two hundred seventy-one thousand, four hundred ninety-seven".