1653426149 has 2 divisors, whose sum is σ = 1653426150. Its totient is φ = 1653426148.

The previous prime is 1653426127. The next prime is 1653426161. The reversal of 1653426149 is 9416243561.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1138590049 + 514836100 = 33743^2 + 22690^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1653426149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1653426169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 826713074 + 826713075.

It is an arithmetic number, because the mean of its divisors is an integer number (826713075).

Almost surely, 2^1653426149 is an apocalyptic number.

It is an amenable number.

1653426149 is a deficient number, since it is larger than the sum of its proper divisors (1).

1653426149 is an equidigital number, since it uses as much as digits as its factorization.

1653426149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 155520, while the sum is 41.

The square root of 1653426149 is about 40662.3431321905. The cubic root of 1653426149 is about 1182.4830765158.

The spelling of 1653426149 in words is "one billion, six hundred fifty-three million, four hundred twenty-six thousand, one hundred forty-nine".