1375621930 has 8 divisors (see below), whose sum is σ = 2476119492. Its totient is φ = 550248768.

The previous prime is 1375621921. The next prime is 1375621937. The reversal of 1375621930 is 391265731.

It can be written as a sum of positive squares in 2 ways, for example, as 1296216009 + 79405921 = 36003^2 + 8911^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 1375621930.

It is not an unprimeable number, because it can be changed into a prime (1375621937) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 68781087 + ... + 68781106.

Almost surely, 2^1375621930 is an apocalyptic number.

1375621930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1375621930 is a deficient number, since it is larger than the sum of its proper divisors (1100497562).

1375621930 is a wasteful number, since it uses less digits than its factorization.

1375621930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137562200.

The product of its (nonzero) digits is 34020, while the sum is 37.

The square root of 1375621930 is about 37089.3775898167. The cubic root of 1375621930 is about 1112.1576757634.

The spelling of 1375621930 in words is "one billion, three hundred seventy-five million, six hundred twenty-one thousand, nine hundred thirty".