139622847 has 16 divisors (see below), whose sum is σ = 229125120. Its totient is φ = 73647072.

The previous prime is 139622837. The next prime is 139622891. The reversal of 139622847 is 748226931.

It is not a de Polignac number, because 139622847 - 2⁴ = 139622831 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 139622799 and 139622808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139622837) 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, 255447 + ... + 255992.

It is an arithmetic number, because the mean of its divisors is an integer number (14320320).

Almost surely, 2^139622847 is an apocalyptic number.

139622847 is a deficient number, since it is larger than the sum of its proper divisors (89502273).

139622847 is a wasteful number, since it uses less digits than its factorization.

139622847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 511462.

The product of its digits is 145152, while the sum is 42.

The square root of 139622847 is about 11816.2111947951. The cubic root of 139622847 is about 518.7827135319.

The spelling of 139622847 in words is "one hundred thirty-nine million, six hundred twenty-two thousand, eight hundred forty-seven".