139150541 has 2 divisors, whose sum is σ = 139150542. Its totient is φ = 139150540.

The previous prime is 139150523. The next prime is 139150591. The reversal of 139150541 is 145051931.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 116014441 + 23136100 = 10771^2 + 4810^2 .

It is a cyclic number.

It is not a de Polignac number, because 139150541 - 2²⁶ = 72041677 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (139150511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69575270 + 69575271.

It is an arithmetic number, because the mean of its divisors is an integer number (69575271).

Almost surely, 2^139150541 is an apocalyptic number.

It is an amenable number.

139150541 is a deficient number, since it is larger than the sum of its proper divisors (1).

139150541 is an equidigital number, since it uses as much as digits as its factorization.

139150541 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2700, while the sum is 29.

The square root of 139150541 is about 11796.2087553586. The cubic root of 139150541 is about 518.1970858993.

The spelling of 139150541 in words is "one hundred thirty-nine million, one hundred fifty thousand, five hundred forty-one".