139929503 has 12 divisors (see below), whose sum is σ = 161038800. Its totient is φ = 119105280.

The previous prime is 139929497. The next prime is 139929511. The reversal of 139929503 is 305929931.

It is a happy number.

It is not a de Polignac number, because 139929503 - 2¹² = 139925407 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139929563) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 311423 + ... + 311871.

It is an arithmetic number, because the mean of its divisors is an integer number (13419900).

Almost surely, 2^139929503 is an apocalyptic number.

139929503 is a deficient number, since it is larger than the sum of its proper divisors (21109297).

139929503 is an frugal number, since it uses more digits than its factorization.

139929503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 878 (or 667 counting only the distinct ones).

The product of its (nonzero) digits is 65610, while the sum is 41.

The square root of 139929503 is about 11829.1801491059. The cubic root of 139929503 is about 519.1622395384.

The spelling of 139929503 in words is "one hundred thirty-nine million, nine hundred twenty-nine thousand, five hundred three".