1516233649 has 16 divisors (see below), whose sum is σ = 1847142400. Its totient is φ = 1215633744.

The previous prime is 1516233647. The next prime is 1516233659. The reversal of 1516233649 is 9463326151.

It is a cyclic number.

It is not a de Polignac number, because 1516233649 - 2¹ = 1516233647 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1516233647) 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 15 ways as a sum of consecutive naturals, for example, 61647 + ... + 82660.

It is an arithmetic number, because the mean of its divisors is an integer number (115446400).

Almost surely, 2^1516233649 is an apocalyptic number.

1516233649 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1516233649 is a deficient number, since it is larger than the sum of its proper divisors (330908751).

1516233649 is a wasteful number, since it uses less digits than its factorization.

1516233649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144412.

The product of its digits is 116640, while the sum is 40.

The square root of 1516233649 is about 38938.8449880065. The cubic root of 1516233649 is about 1148.8289652283.

The spelling of 1516233649 in words is "one billion, five hundred sixteen million, two hundred thirty-three thousand, six hundred forty-nine".