1370004521 has 8 divisors (see below), whose sum is σ = 1383535560. Its totient is φ = 1356524928.

The previous prime is 1370004511. The next prime is 1370004527. The reversal of 1370004521 is 1254000731.

It can be written as a sum of positive squares in 4 ways, for example, as 734410000 + 635594521 = 27100^2 + 25211^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1370004521 is a prime.

It is a Duffinian number.

1370004521 is a modest number, since divided by 4521 gives 1370 as remainder.

It is not an unprimeable number, because it can be changed into a prime (1370004527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41795 + ... + 66983.

It is an arithmetic number, because the mean of its divisors is an integer number (172941945).

Almost surely, 2^1370004521 is an apocalyptic number.

It is an amenable number.

1370004521 is a deficient number, since it is larger than the sum of its proper divisors (13531039).

1370004521 is a wasteful number, since it uses less digits than its factorization.

1370004521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25723.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 1370004521 is about 37013.5721188863. The cubic root of 1370004521 is about 1110.6417631799.

The spelling of 1370004521 in words is "one billion, three hundred seventy million, four thousand, five hundred twenty-one".