139020554 has 16 divisors (see below), whose sum is σ = 215552256. Its totient is φ = 67176000.

The previous prime is 139020527. The next prime is 139020559. The reversal of 139020554 is 455020931.

It is not an unprimeable number, because it can be changed into a prime (139020559) 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, 73529 + ... + 75395.

It is an arithmetic number, because the mean of its divisors is an integer number (13472016).

Almost surely, 2^139020554 is an apocalyptic number.

139020554 is a deficient number, since it is larger than the sum of its proper divisors (76531702).

139020554 is a wasteful number, since it uses less digits than its factorization.

139020554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3101.

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 139020554 is about 11790.6977740929. The cubic root of 139020554 is about 518.0356782867.

The spelling of 139020554 in words is "one hundred thirty-nine million, twenty thousand, five hundred fifty-four".