1370517421 has 8 divisors (see below), whose sum is σ = 1686790784. Its totient is φ = 1084365360.

The previous prime is 1370517413. The next prime is 1370517427. The reversal of 1370517421 is 1247150731.

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

It is not a de Polignac number, because 1370517421 - 2³ = 1370517413 is a prime.

It is the 37021-st Hogben number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1370517427) by changing a digit.

It is a nontrivial repunit in base 37020.

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, 7530225 + ... + 7530406.

It is an arithmetic number, because the mean of its divisors is an integer number (210848848).

Almost surely, 2^1370517421 is an apocalyptic number.

It is an amenable number.

1370517421 is a deficient number, since it is larger than the sum of its proper divisors (316273363).

1370517421 is a wasteful number, since it uses less digits than its factorization.

1370517421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15060651.

The product of its (nonzero) digits is 5880, while the sum is 31.

The square root of 1370517421 is about 37020.5000101295. The cubic root of 1370517421 is about 1110.7803459555.

The spelling of 1370517421 in words is "one billion, three hundred seventy million, five hundred seventeen thousand, four hundred twenty-one".