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BaseRepresentation
bin100010000011101110
321002100202
4202003232
513431002
62553502
71120466
oct420356
9232322
10139502
11958a0
1268892
134b65c
1438ba6
152b502
hex220ee

139502 has 16 divisors (see below), whose sum is σ = 242352. Its totient is φ = 59520.

The previous prime is 139501. The next prime is 139511. The reversal of 139502 is 205931.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139501) 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, 188 + ... + 560.

It is an arithmetic number, because the mean of its divisors is an integer number (15147).

2139502 is an apocalyptic number.

It is a pronic number, being equal to 373×374.

139502 is a deficient number, since it is larger than the sum of its proper divisors (102850).

139502 is a wasteful number, since it uses less digits than its factorization.

139502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403.

The product of its (nonzero) digits is 270, while the sum is 20.

The square root of 139502 is about 373.4996653278. The cubic root of 139502 is about 51.8632997273.

The spelling of 139502 in words is "one hundred thirty-nine thousand, five hundred two".