139196280 has 64 divisors (see below), whose sum is σ = 439574400. Its totient is φ = 35164800.

The previous prime is 139196279. The next prime is 139196287. The reversal of 139196280 is 82691931.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139196287) 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, 28246 + ... + 32805.

It is an arithmetic number, because the mean of its divisors is an integer number (6868350).

Almost surely, 2^139196280 is an apocalyptic number.

139196280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

139196280 is an abundant number, since it is smaller than the sum of its proper divisors (300378120).

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

139196280 is a wasteful number, since it uses less digits than its factorization.

139196280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61084 (or 61080 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 39.

The square root of 139196280 is about 11798.1473121842. The cubic root of 139196280 is about 518.2538570765.

The spelling of 139196280 in words is "one hundred thirty-nine million, one hundred ninety-six thousand, two hundred eighty".