148728249 has 6 divisors (see below), whose sum is σ = 214829706. Its totient is φ = 99152160.

The previous prime is 148728247. The next prime is 148728259. The reversal of 148728249 is 942827841.

It can be written as a sum of positive squares in only one way, i.e., 139996224 + 8732025 = 11832^2 + 2955^2 .

It is not a de Polignac number, because 148728249 - 2¹ = 148728247 is a prime.

It is not an unprimeable number, because it can be changed into a prime (148728247) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8262672 + ... + 8262689.

It is an arithmetic number, because the mean of its divisors is an integer number (35804951).

Almost surely, 2^148728249 is an apocalyptic number.

It is an amenable number.

148728249 is a deficient number, since it is larger than the sum of its proper divisors (66101457).

148728249 is a wasteful number, since it uses less digits than its factorization.

148728249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16525367 (or 16525364 counting only the distinct ones).

The product of its digits is 258048, while the sum is 45.

The square root of 148728249 is about 12195.4191809876. The cubic root of 148728249 is about 529.8234240308.

The spelling of 148728249 in words is "one hundred forty-eight million, seven hundred twenty-eight thousand, two hundred forty-nine".