139455502 has 12 divisors (see below), whose sum is σ = 212343768. Its totient is φ = 68676300.

The previous prime is 139455413. The next prime is 139455541. The reversal of 139455502 is 205554931.

139455502 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 140227 + ... + 141217.

It is an arithmetic number, because the mean of its divisors is an integer number (17695314).

Almost surely, 2^139455502 is an apocalyptic number.

139455502 is a deficient number, since it is larger than the sum of its proper divisors (72888266).

139455502 is an frugal number, since it uses more digits than its factorization.

139455502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2055 (or 1064 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 34.

The square root of 139455502 is about 11809.1279102227. The cubic root of 139455502 is about 518.5753682860.

The spelling of 139455502 in words is "one hundred thirty-nine million, four hundred fifty-five thousand, five hundred two".