1653125941 has 2 divisors, whose sum is σ = 1653125942. Its totient is φ = 1653125940.

The previous prime is 1653125939. The next prime is 1653125963. The reversal of 1653125941 is 1495213561.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1652747716 + 378225 = 40654^2 + 615^2 .

It is a cyclic number.

It is not a de Polignac number, because 1653125941 - 2¹ = 1653125939 is a prime.

Together with 1653125939, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1653125941.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1653125141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 826562970 + 826562971.

It is an arithmetic number, because the mean of its divisors is an integer number (826562971).

Almost surely, 2^1653125941 is an apocalyptic number.

It is an amenable number.

1653125941 is a deficient number, since it is larger than the sum of its proper divisors (1).

1653125941 is an equidigital number, since it uses as much as digits as its factorization.

1653125941 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32400, while the sum is 37.

The square root of 1653125941 is about 40658.6514901810. The cubic root of 1653125941 is about 1182.4115054598.

The spelling of 1653125941 in words is "one billion, six hundred fifty-three million, one hundred twenty-five thousand, nine hundred forty-one".