148138937 has 2 divisors, whose sum is σ = 148138938. Its totient is φ = 148138936.

The previous prime is 148138889. The next prime is 148138951. The reversal of 148138937 is 739831841.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 91948921 + 56190016 = 9589^2 + 7496^2 .

It is a cyclic number.

It is not a de Polignac number, because 148138937 - 2²⁴ = 131361721 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (148138967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74069468 + 74069469.

It is an arithmetic number, because the mean of its divisors is an integer number (74069469).

Almost surely, 2^148138937 is an apocalyptic number.

It is an amenable number.

148138937 is a deficient number, since it is larger than the sum of its proper divisors (1).

148138937 is an equidigital number, since it uses as much as digits as its factorization.

148138937 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 145152, while the sum is 44.

The square root of 148138937 is about 12171.2339966003. The cubic root of 148138937 is about 529.1227174224.

The spelling of 148138937 in words is "one hundred forty-eight million, one hundred thirty-eight thousand, nine hundred thirty-seven".