1606737121 has 8 divisors (see below), whose sum is σ = 1753431264. Its totient is φ = 1460147520.

The previous prime is 1606737113. The next prime is 1606737137. The reversal of 1606737121 is 1217376061.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1606737121 - 2³ = 1606737113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1606737101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7945 + ... + 57241.

It is an arithmetic number, because the mean of its divisors is an integer number (219178908).

Almost surely, 2^1606737121 is an apocalyptic number.

1606737121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1606737121 is a deficient number, since it is larger than the sum of its proper divisors (146694143).

1606737121 is a wasteful number, since it uses less digits than its factorization.

1606737121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52271.

The product of its (nonzero) digits is 10584, while the sum is 34.

The square root of 1606737121 is about 40084.1255486508. The cubic root of 1606737121 is about 1171.2464183098.

The spelling of 1606737121 in words is "one billion, six hundred six million, seven hundred thirty-seven thousand, one hundred twenty-one".