139860429 has 8 divisors (see below), whose sum is σ = 186881760. Its totient is φ = 93039696.

The previous prime is 139860421. The next prime is 139860451. The reversal of 139860429 is 924068931.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 139860429 - 2³ = 139860421 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139860421) 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 7 ways as a sum of consecutive naturals, for example, 48514 + ... + 51315.

It is an arithmetic number, because the mean of its divisors is an integer number (23360220).

Almost surely, 2^139860429 is an apocalyptic number.

It is an amenable number.

139860429 is a deficient number, since it is larger than the sum of its proper divisors (47021331).

139860429 is an equidigital number, since it uses as much as digits as its factorization.

139860429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100299.

The product of its (nonzero) digits is 93312, while the sum is 42.

The square root of 139860429 is about 11826.2601442722. The cubic root of 139860429 is about 519.0768000514.

The spelling of 139860429 in words is "one hundred thirty-nine million, eight hundred sixty thousand, four hundred twenty-nine".