139678030 has 16 divisors (see below), whose sum is σ = 251566560. Its totient is φ = 55838752.

The previous prime is 139678013. The next prime is 139678037. The reversal of 139678030 is 30876931.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139678037) 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, 21951 + ... + 27589.

It is an arithmetic number, because the mean of its divisors is an integer number (15722910).

Almost surely, 2^139678030 is an apocalyptic number.

139678030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

139678030 is a deficient number, since it is larger than the sum of its proper divisors (111888530).

139678030 is a wasteful number, since it uses less digits than its factorization.

139678030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8123.

The product of its (nonzero) digits is 27216, while the sum is 37.

The square root of 139678030 is about 11818.5460188637. The cubic root of 139678030 is about 518.8510505230.

The spelling of 139678030 in words is "one hundred thirty-nine million, six hundred seventy-eight thousand, thirty".