228701394139 has 32 divisors (see below), whose sum is σ = 250686754560. Its totient is φ = 207921168000.

The previous prime is 228701394109. The next prime is 228701394151. The reversal of 228701394139 is 931493107822.

It is a happy number.

It is not a de Polignac number, because 228701394139 - 2⁷ = 228701394011 is a prime.

It is a super-2 number, since 2×228701394139² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 228701394092 and 228701394101.

It is not an unprimeable number, because it can be changed into a prime (228701394109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10799149 + ... + 10820305.

It is an arithmetic number, because the mean of its divisors is an integer number (7833961080).

Almost surely, 2^228701394139 is an apocalyptic number.

228701394139 is a deficient number, since it is larger than the sum of its proper divisors (21985360421).

228701394139 is a wasteful number, since it uses less digits than its factorization.

228701394139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21451.

The product of its (nonzero) digits is 653184, while the sum is 49.

The spelling of 228701394139 in words is "two hundred twenty-eight billion, seven hundred one million, three hundred ninety-four thousand, one hundred thirty-nine".