1606312154 has 8 divisors (see below), whose sum is σ = 2474589108. Its totient is φ = 781449120.

The previous prime is 1606312153. The next prime is 1606312159. The reversal of 1606312154 is 4512136061.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1472794129 + 133518025 = 38377^2 + 11555^2 .

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

It is not an unprimeable number, because it can be changed into a prime (1606312153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10853387 + ... + 10853534.

Almost surely, 2^1606312154 is an apocalyptic number.

1606312154 is a deficient number, since it is larger than the sum of its proper divisors (868276954).

1606312154 is a wasteful number, since it uses less digits than its factorization.

1606312154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21706960.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 1606312154 is about 40078.8242592020. The cubic root of 1606312154 is about 1171.1431479492.

The spelling of 1606312154 in words is "one billion, six hundred six million, three hundred twelve thousand, one hundred fifty-four".