140235452 has 36 divisors (see below), whose sum is σ = 286418160. Its totient is φ = 59903424.

The previous prime is 140235449. The next prime is 140235479. The reversal of 140235452 is 254532041.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 69368 + ... + 71360.

It is an arithmetic number, because the mean of its divisors is an integer number (7956060).

Almost surely, 2^140235452 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 140235452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (143209080).

140235452 is an abundant number, since it is smaller than the sum of its proper divisors (146182708).

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

140235452 is a wasteful number, since it uses less digits than its factorization.

140235452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2370 (or 2361 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 140235452 is about 11842.1050493567. The cubic root of 140235452 is about 519.5403383710.

Adding to 140235452 its reverse (254532041), we get a palindrome (394767493).

The spelling of 140235452 in words is "one hundred forty million, two hundred thirty-five thousand, four hundred fifty-two".