140827257 has 6 divisors (see below), whose sum is σ = 203417162. Its totient is φ = 93884832.

The previous prime is 140827243. The next prime is 140827261. The reversal of 140827257 is 752728041.

140827257 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 86936976 + 53890281 = 9324^2 + 7341^2 .

It is not a de Polignac number, because 140827257 - 2¹² = 140823161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140827207) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7823728 + ... + 7823745.

Almost surely, 2^140827257 is an apocalyptic number.

It is an amenable number.

140827257 is a deficient number, since it is larger than the sum of its proper divisors (62589905).

140827257 is a wasteful number, since it uses less digits than its factorization.

140827257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15647479 (or 15647476 counting only the distinct ones).

The product of its (nonzero) digits is 31360, while the sum is 36.

The square root of 140827257 is about 11867.0660653761. The cubic root of 140827257 is about 520.2701468596.

The spelling of 140827257 in words is "one hundred forty million, eight hundred twenty-seven thousand, two hundred fifty-seven".