140129536 has 36 divisors (see below), whose sum is σ = 280780192. Its totient is φ = 69797376.

The previous prime is 140129527. The next prime is 140129557. The reversal of 140129536 is 635921041.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 140129498 and 140129507.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77701 + ... + 79483.

Almost surely, 2^140129536 is an apocalyptic number.

140129536 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 140129536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (140390096).

140129536 is an abundant number, since it is smaller than the sum of its proper divisors (140650656).

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

140129536 is an equidigital number, since it uses as much as digits as its factorization.

140129536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2106 (or 2092 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 140129536 is about 11837.6321956716. The cubic root of 140129536 is about 519.4095072268.

The spelling of 140129536 in words is "one hundred forty million, one hundred twenty-nine thousand, five hundred thirty-six".