148857705 has 24 divisors (see below), whose sum is σ = 259763400. Its totient is φ = 78857952.

The previous prime is 148857689. The next prime is 148857707. The reversal of 148857705 is 507758841.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 65464281 + 83393424 = 8091^2 + 9132^2 .

It is not a de Polignac number, because 148857705 - 2⁴ = 148857689 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (148857707) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 998971 + ... + 999119.

It is an arithmetic number, because the mean of its divisors is an integer number (10823475).

Almost surely, 2^148857705 is an apocalyptic number.

148857705 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

148857705 is a deficient number, since it is larger than the sum of its proper divisors (110905695).

148857705 is an frugal number, since it uses more digits than its factorization.

148857705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 458 (or 157 counting only the distinct ones).

The product of its (nonzero) digits is 313600, while the sum is 45.

The square root of 148857705 is about 12200.7255931768. The cubic root of 148857705 is about 529.9771023690.

148857705 divided by its sum of digits (45) gives a cube (3307949 = 149³).

The spelling of 148857705 in words is "one hundred forty-eight million, eight hundred fifty-seven thousand, seven hundred five".