140988258 has 48 divisors (see below), whose sum is σ = 317333016. Its totient is φ = 45204480.

The previous prime is 140988257. The next prime is 140988277. The reversal of 140988258 is 852889041.

It is a happy number.

140988258 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 4 ways, for example, as 126495009 + 14493249 = 11247^2 + 3807^2 .

It is not an unprimeable number, because it can be changed into a prime (140988257) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 52566 + ... + 55182.

Almost surely, 2^140988258 is an apocalyptic number.

140988258 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

140988258 is an abundant number, since it is smaller than the sum of its proper divisors (176344758).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

140988258 is a wasteful number, since it uses less digits than its factorization.

140988258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2739 (or 2736 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 45.

The square root of 140988258 is about 11873.8476493511. The cubic root of 140988258 is about 520.4683379268.

It can be divided in two parts, 140988 and 258, that added together give a triangular number (141246 = T₅₃₁).

The spelling of 140988258 in words is "one hundred forty million, nine hundred eighty-eight thousand, two hundred fifty-eight".