139407541 has 16 divisors (see below), whose sum is σ = 180611200. Its totient is φ = 104493888.

The previous prime is 139407539. The next prime is 139407557. The reversal of 139407541 is 145704931.

It is a cyclic number.

It is not a de Polignac number, because 139407541 - 2¹ = 139407539 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 139407497 and 139407506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139407511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38586 + ... + 42043.

It is an arithmetic number, because the mean of its divisors is an integer number (11288200).

Almost surely, 2^139407541 is an apocalyptic number.

It is an amenable number.

139407541 is a deficient number, since it is larger than the sum of its proper divisors (41203659).

139407541 is a wasteful number, since it uses less digits than its factorization.

139407541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80668.

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 139407541 is about 11807.0970606665. The cubic root of 139407541 is about 518.5159126540.

The spelling of 139407541 in words is "one hundred thirty-nine million, four hundred seven thousand, five hundred forty-one".