1515000049 has 8 divisors (see below), whose sum is σ = 1568122920. Its totient is φ = 1461936000.

The previous prime is 1515000007. The next prime is 1515000073. The reversal of 1515000049 is 9400005151.

It can be written as a sum of positive squares in 4 ways, for example, as 292239025 + 1222761024 = 17095^2 + 34968^2 .

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 1515000049 - 2⁷ = 1514999921 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1514999987 and 1515000032.

It is not an unprimeable number, because it can be changed into a prime (1515000089) 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, 41389 + ... + 68869.

It is an arithmetic number, because the mean of its divisors is an integer number (196015365).

Almost surely, 2^1515000049 is an apocalyptic number.

It is an amenable number.

1515000049 is a deficient number, since it is larger than the sum of its proper divisors (53122871).

1515000049 is a wasteful number, since it uses less digits than its factorization.

1515000049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29411.

The product of its (nonzero) digits is 900, while the sum is 25.

The square root of 1515000049 is about 38923.0015415050. The cubic root of 1515000049 is about 1148.5173202240.

The spelling of 1515000049 in words is "one billion, five hundred fifteen million, forty-nine", and thus it is an aban number.