48139837 has 2 divisors, whose sum is σ = 48139838. Its totient is φ = 48139836.

The previous prime is 48139799. The next prime is 48139841. The reversal of 48139837 is 73893184.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41718681 + 6421156 = 6459^2 + 2534^2 .

It is a cyclic number.

It is not a de Polignac number, because 48139837 - 2¹⁹ = 47615549 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 48139793 and 48139802.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (48139037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24069918 + 24069919.

It is an arithmetic number, because the mean of its divisors is an integer number (24069919).

Almost surely, 2^48139837 is an apocalyptic number.

It is an amenable number.

48139837 is a deficient number, since it is larger than the sum of its proper divisors (1).

48139837 is an equidigital number, since it uses as much as digits as its factorization.

48139837 is an evil number, because the sum of its binary digits is even.

The product of its digits is 145152, while the sum is 43.

The square root of 48139837 is about 6938.2877570767. The cubic root of 48139837 is about 363.7766940334.

It can be divided in two parts, 48 and 139837, that multiplied together give a palindrome (6712176).

The spelling of 48139837 in words is "forty-eight million, one hundred thirty-nine thousand, eight hundred thirty-seven".