140858 has 4 divisors (see below), whose sum is σ = 211290. Its totient is φ = 70428.

The previous prime is 140839. The next prime is 140863. The reversal of 140858 is 858041.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 120409 + 20449 = 347^2 + 143^2 .

It is an Ulam number.

It is a Curzon number.

It is a plaindrome in base 7.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35213 + ... + 35216.

2¹⁴⁰⁸⁵⁸ is an apocalyptic number.

140858 is a deficient number, since it is larger than the sum of its proper divisors (70432).

140858 is an equidigital number, since it uses as much as digits as its factorization.

140858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70431.

The product of its (nonzero) digits is 1280, while the sum is 26.

The square root of 140858 is about 375.3105380881. The cubic root of 140858 is about 52.0308002934.

Adding to 140858 its reverse (858041), we get a palindrome (998899).

The spelling of 140858 in words is "one hundred forty thousand, eight hundred fifty-eight".