2131948 has 24 divisors (see below), whose sum is σ = 4592672. Its totient is φ = 843264.

The previous prime is 2131937. The next prime is 2131951. The reversal of 2131948 is 8491312.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2565 + ... + 3292.

2^2131948 is an apocalyptic number.

2131948 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2131948 is an abundant number, since it is smaller than the sum of its proper divisors (2460724).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2131948 is a wasteful number, since it uses less digits than its factorization.

2131948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5881 (or 5879 counting only the distinct ones).

The product of its digits is 1728, while the sum is 28.

The square root of 2131948 is about 1460.1191732184. The cubic root of 2131948 is about 128.7040468172.

The spelling of 2131948 in words is "two million, one hundred thirty-one thousand, nine hundred forty-eight".