1602153121 has 2 divisors, whose sum is σ = 1602153122. Its totient is φ = 1602153120.

The previous prime is 1602153109. The next prime is 1602153193. The reversal of 1602153121 is 1213512061.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1582448400 + 19704721 = 39780^2 + 4439^2 .

It is an emirp because it is prime and its reverse (1213512061) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1602153121 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1602153092 and 1602153101.

It is not a weakly prime, because it can be changed into another prime (1602153521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 801076560 + 801076561.

It is an arithmetic number, because the mean of its divisors is an integer number (801076561).

Almost surely, 2^1602153121 is an apocalyptic number.

It is an amenable number.

1602153121 is a deficient number, since it is larger than the sum of its proper divisors (1).

1602153121 is an equidigital number, since it uses as much as digits as its factorization.

1602153121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 1602153121 is about 40026.9049640364. The cubic root of 1602153121 is about 1170.1315071214.

Adding to 1602153121 its reverse (1213512061), we get a palindrome (2815665182).

The spelling of 1602153121 in words is "one billion, six hundred two million, one hundred fifty-three thousand, one hundred twenty-one".