140403152 has 20 divisors (see below), whose sum is σ = 281412420. Its totient is φ = 67780608.

The previous prime is 140403149. The next prime is 140403157. The reversal of 140403152 is 251304041.

It can be written as a sum of positive squares in 2 ways, for example, as 103144336 + 37258816 = 10156^2 + 6104^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140403157) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 150833 + ... + 151760.

It is an arithmetic number, because the mean of its divisors is an integer number (14070621).

Almost surely, 2^140403152 is an apocalyptic number.

It is an amenable number.

140403152 is an abundant number, since it is smaller than the sum of its proper divisors (141009268).

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

140403152 is a wasteful number, since it uses less digits than its factorization.

140403152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302630 (or 302624 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 140403152 is about 11849.1836005693. The cubic root of 140403152 is about 519.7473526137.

Adding to 140403152 its reverse (251304041), we get a palindrome (391707193).

The spelling of 140403152 in words is "one hundred forty million, four hundred three thousand, one hundred fifty-two".