1375221830 has 8 divisors (see below), whose sum is σ = 2475399312. Its totient is φ = 550088728.

The previous prime is 1375221823. The next prime is 1375221871. The reversal of 1375221830 is 381225731.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68761082 + ... + 68761101.

It is an arithmetic number, because the mean of its divisors is an integer number (309424914).

Almost surely, 2^1375221830 is an apocalyptic number.

1375221830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1375221830 is a deficient number, since it is larger than the sum of its proper divisors (1100177482).

1375221830 is a wasteful number, since it uses less digits than its factorization.

1375221830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137522190.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 1375221830 is about 37083.9834699564. The cubic root of 1375221830 is about 1112.0498415241.

The spelling of 1375221830 in words is "one billion, three hundred seventy-five million, two hundred twenty-one thousand, eight hundred thirty".