1948138 has 8 divisors (see below), whose sum is σ = 2928132. Its totient is φ = 972096.

The previous prime is 1948129. The next prime is 1948139. The reversal of 1948138 is 8318491.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1555009 + 393129 = 1247^2 + 627^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1948139) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1456 + ... + 2452.

2^1948138 is an apocalyptic number.

1948138 is a deficient number, since it is larger than the sum of its proper divisors (979994).

1948138 is an equidigital number, since it uses as much as digits as its factorization.

1948138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1976.

The product of its digits is 6912, while the sum is 34.

The square root of 1948138 is about 1395.7571421992. The cubic root of 1948138 is about 124.8935199885.

The spelling of 1948138 in words is "one million, nine hundred forty-eight thousand, one hundred thirty-eight".