140979258 has 128 divisors (see below), whose sum is σ = 378224640. Its totient is φ = 38076480.

The previous prime is 140979253. The next prime is 140979263. The reversal of 140979258 is 852979041.

It is an interprime number because it is at equal distance from previous prime (140979253) and next prime (140979263).

It is not an unprimeable number, because it can be changed into a prime (140979253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 620941 + ... + 621167.

It is an arithmetic number, because the mean of its divisors is an integer number (2954880).

Almost surely, 2^140979258 is an apocalyptic number.

140979258 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 140979258, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (189112320).

140979258 is an abundant number, since it is smaller than the sum of its proper divisors (237245382).

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

140979258 is a wasteful number, since it uses less digits than its factorization.

140979258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329 (or 323 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 45.

The square root of 140979258 is about 11873.4686591577. The cubic root of 140979258 is about 520.4572629745.

The spelling of 140979258 in words is "one hundred forty million, nine hundred seventy-nine thousand, two hundred fifty-eight".