139161429 has 16 divisors (see below), whose sum is σ = 224907840. Its totient is φ = 84340080.

The previous prime is 139161419. The next prime is 139161443. The reversal of 139161429 is 924161931.

It is a happy number.

139161429 is a `hidden beast` number, since 1 + 39 + 1 + 614 + 2 + 9 = 666.

It is not a de Polignac number, because 139161429 - 2⁸ = 139161173 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 139161393 and 139161402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139161419) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 233982 + ... + 234575.

It is an arithmetic number, because the mean of its divisors is an integer number (14056740).

Almost surely, 2^139161429 is an apocalyptic number.

It is an amenable number.

139161429 is a deficient number, since it is larger than the sum of its proper divisors (85746411).

139161429 is a wasteful number, since it uses less digits than its factorization.

139161429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 468577 (or 468571 counting only the distinct ones).

The product of its digits is 11664, while the sum is 36.

The square root of 139161429 is about 11796.6702505410. The cubic root of 139161429 is about 518.2106011964.

The spelling of 139161429 in words is "one hundred thirty-nine million, one hundred sixty-one thousand, four hundred twenty-nine".