148868537 has 6 divisors (see below), whose sum is σ = 152413002. Its totient is φ = 145404672.

The previous prime is 148868527. The next prime is 148868539. The reversal of 148868537 is 735868841.

It can be written as a sum of positive squares in only one way, i.e., 79995136 + 68873401 = 8944^2 + 8299^2 .

It is not a de Polignac number, because 148868537 - 2⁴ = 148868521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (148868539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 38408 + ... + 42105.

It is an arithmetic number, because the mean of its divisors is an integer number (25402167).

Almost surely, 2^148868537 is an apocalyptic number.

It is an amenable number.

148868537 is a deficient number, since it is larger than the sum of its proper divisors (3544465).

148868537 is an frugal number, since it uses more digits than its factorization.

148868537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80599 (or 80556 counting only the distinct ones).

The product of its digits is 1290240, while the sum is 50.

The square root of 148868537 is about 12201.1694931265. The cubic root of 148868537 is about 529.9899570899.

The spelling of 148868537 in words is "one hundred forty-eight million, eight hundred sixty-eight thousand, five hundred thirty-seven".