1516012645 has 8 divisors (see below), whose sum is σ = 2079103104. Its totient is φ = 1039551504.

The previous prime is 1516012637. The next prime is 1516012651. The reversal of 1516012645 is 5462106151.

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 1516012645 - 2³ = 1516012637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21657289 + ... + 21657358.

It is an arithmetic number, because the mean of its divisors is an integer number (259887888).

Almost surely, 2^1516012645 is an apocalyptic number.

It is an amenable number.

1516012645 is a deficient number, since it is larger than the sum of its proper divisors (563090459).

1516012645 is an equidigital number, since it uses as much as digits as its factorization.

1516012645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43314659.

The product of its (nonzero) digits is 7200, while the sum is 31.

The square root of 1516012645 is about 38936.0070500302. The cubic root of 1516012645 is about 1148.7731453060.

Adding to 1516012645 its reverse (5462106151), we get a palindrome (6978118796).

The spelling of 1516012645 in words is "one billion, five hundred sixteen million, twelve thousand, six hundred forty-five".