139789541 has 16 divisors (see below), whose sum is σ = 149914800. Its totient is φ = 130099200.

The previous prime is 139789523. The next prime is 139789543. The reversal of 139789541 is 145987931.

139789541 = 1209² + 1210² + ... + 1297².

It can be written as a sum of positive squares in 8 ways, for example, as 4532641 + 135256900 = 2129^2 + 11630^2 .

It is a cyclic number.

It is not a de Polignac number, because 139789541 - 2¹⁴ = 139773157 is a prime.

It is a super-2 number, since 2×139789541² = 39082231545981362, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139789543) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 105161 + ... + 106481.

It is an arithmetic number, because the mean of its divisors is an integer number (9369675).

Almost surely, 2^139789541 is an apocalyptic number.

It is an amenable number.

139789541 is a deficient number, since it is larger than the sum of its proper divisors (10125259).

139789541 is a wasteful number, since it uses less digits than its factorization.

139789541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1480.

The product of its digits is 272160, while the sum is 47.

The square root of 139789541 is about 11823.2627053618. The cubic root of 139789541 is about 518.9890875252.

The spelling of 139789541 in words is "one hundred thirty-nine million, seven hundred eighty-nine thousand, five hundred forty-one".