139271429 has 8 divisors (see below), whose sum is σ = 160869888. Its totient is φ = 119162560.

The previous prime is 139271423. The next prime is 139271443. The reversal of 139271429 is 924172931.

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

It is not a de Polignac number, because 139271429 - 2⁴ = 139271413 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 139271392 and 139271401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139271423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 372197 + ... + 372570.

It is an arithmetic number, because the mean of its divisors is an integer number (20108736).

Almost surely, 2^139271429 is an apocalyptic number.

It is an amenable number.

139271429 is a deficient number, since it is larger than the sum of its proper divisors (21598459).

139271429 is a wasteful number, since it uses less digits than its factorization.

139271429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 744795.

The product of its digits is 27216, while the sum is 38.

The square root of 139271429 is about 11801.3316621473. The cubic root of 139271429 is about 518.3471049048.

The spelling of 139271429 in words is "one hundred thirty-nine million, two hundred seventy-one thousand, four hundred twenty-nine".