1609370101 has 2 divisors, whose sum is σ = 1609370102. Its totient is φ = 1609370100.

The previous prime is 1609370047. The next prime is 1609370117. The reversal of 1609370101 is 1010739061.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1218359025 + 391011076 = 34905^2 + 19774^2 .

It is a cyclic number.

It is not a de Polignac number, because 1609370101 - 2⁷ = 1609369973 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1609370101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1609370401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 804685050 + 804685051.

It is an arithmetic number, because the mean of its divisors is an integer number (804685051).

Almost surely, 2^1609370101 is an apocalyptic number.

It is an amenable number.

1609370101 is a deficient number, since it is larger than the sum of its proper divisors (1).

1609370101 is an equidigital number, since it uses as much as digits as its factorization.

1609370101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1134, while the sum is 28.

The square root of 1609370101 is about 40116.9552807787. The cubic root of 1609370101 is about 1171.8858478223.

The spelling of 1609370101 in words is "one billion, six hundred nine million, three hundred seventy thousand, one hundred one".