1516745140 has 24 divisors (see below), whose sum is σ = 3186017352. Its totient is φ = 606535680.

The previous prime is 1516745101. The next prime is 1516745141. The reversal of 1516745140 is 415476151.

It can be written as a sum of positive squares in 4 ways, for example, as 262310416 + 1254434724 = 16196^2 + 35418^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1516745096 and 1516745105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1516745141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91060 + ... + 106420.

It is an arithmetic number, because the mean of its divisors is an integer number (132750723).

Almost surely, 2^1516745140 is an apocalyptic number.

1516745140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1516745140 is an abundant number, since it is smaller than the sum of its proper divisors (1669272212).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1516745140 is a wasteful number, since it uses less digits than its factorization.

1516745140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20307 (or 20305 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 34.

The square root of 1516745140 is about 38945.4123100526. The cubic root of 1516745140 is about 1148.9581338898.

The spelling of 1516745140 in words is "one billion, five hundred sixteen million, seven hundred forty-five thousand, one hundred forty".