1948613 has 2 divisors, whose sum is σ = 1948614. Its totient is φ = 1948612.

The previous prime is 1948603. The next prime is 1948619. The reversal of 1948613 is 3168491.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1898884 + 49729 = 1378^2 + 223^2 .

It is a cyclic number.

It is not a de Polignac number, because 1948613 - 2⁶ = 1948549 is a prime.

It is a Chen prime.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 1948613.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1948619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 974306 + 974307.

It is an arithmetic number, because the mean of its divisors is an integer number (974307).

2^1948613 is an apocalyptic number.

It is an amenable number.

1948613 is a deficient number, since it is larger than the sum of its proper divisors (1).

1948613 is an equidigital number, since it uses as much as digits as its factorization.

1948613 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5184, while the sum is 32.

The square root of 1948613 is about 1395.9272903701. The cubic root of 1948613 is about 124.9036697830.

The spelling of 1948613 in words is "one million, nine hundred forty-eight thousand, six hundred thirteen".