139012750 has 16 divisors (see below), whose sum is σ = 260232336. Its totient is φ = 55605000.

The previous prime is 139012733. The next prime is 139012771. The reversal of 139012750 is 57210931.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 277776 + ... + 278275.

It is an arithmetic number, because the mean of its divisors is an integer number (16264521).

Almost surely, 2^139012750 is an apocalyptic number.

139012750 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

139012750 is a deficient number, since it is larger than the sum of its proper divisors (121219586).

139012750 is an equidigital number, since it uses as much as digits as its factorization.

139012750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 556068 (or 556058 counting only the distinct ones).

The product of its (nonzero) digits is 1890, while the sum is 28.

The square root of 139012750 is about 11790.3668305952. The cubic root of 139012750 is about 518.0259846935.

The spelling of 139012750 in words is "one hundred thirty-nine million, twelve thousand, seven hundred fifty".