1602981149 has 24 divisors (see below), whose sum is σ = 2036941056. Its totient is φ = 1247400000.

The previous prime is 1602981143. The next prime is 1602981181. The reversal of 1602981149 is 9411892061.

It is not a de Polignac number, because 1602981149 - 2¹² = 1602977053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1602981143) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 532649 + ... + 535649.

It is an arithmetic number, because the mean of its divisors is an integer number (84872544).

Almost surely, 2^1602981149 is an apocalyptic number.

It is an amenable number.

1602981149 is a deficient number, since it is larger than the sum of its proper divisors (433959907).

1602981149 is a wasteful number, since it uses less digits than its factorization.

1602981149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4017 (or 4010 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 41.

The square root of 1602981149 is about 40037.2470207431. The cubic root of 1602981149 is about 1170.3330556438. Note that the first 3 decimals are identical.

The spelling of 1602981149 in words is "one billion, six hundred two million, nine hundred eighty-one thousand, one hundred forty-nine".