139729038 has 16 divisors (see below), whose sum is σ = 282996480. Its totient is φ = 45986616.

The previous prime is 139729033. The next prime is 139729043. The reversal of 139729038 is 830927931.

It is an interprime number because it is at equal distance from previous prime (139729033) and next prime (139729043).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139729033) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 146920 + ... + 147867.

It is an arithmetic number, because the mean of its divisors is an integer number (17687280).

Almost surely, 2^139729038 is an apocalyptic number.

139729038 is an abundant number, since it is smaller than the sum of its proper divisors (143267442).

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

139729038 is a wasteful number, since it uses less digits than its factorization.

139729038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294871.

The product of its (nonzero) digits is 81648, while the sum is 42.

The square root of 139729038 is about 11820.7037861542. The cubic root of 139729038 is about 518.9142013121.

The spelling of 139729038 in words is "one hundred thirty-nine million, seven hundred twenty-nine thousand, thirty-eight".