1381623207 has 8 divisors (see below), whose sum is σ = 1887095280. Its totient is φ = 898616640.

The previous prime is 1381623197. The next prime is 1381623227. The reversal of 1381623207 is 7023261831.

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

It is not a de Polignac number, because 1381623207 - 2¹⁸ = 1381361063 is a prime.

It is a super-2 number, since 2×1381623207² = 3817765372241929698, which contains 22 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1381623227) 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 7 ways as a sum of consecutive naturals, for example, 5616232 + ... + 5616477.

It is an arithmetic number, because the mean of its divisors is an integer number (235886910).

Almost surely, 2^1381623207 is an apocalyptic number.

1381623207 is a deficient number, since it is larger than the sum of its proper divisors (505472073).

1381623207 is a wasteful number, since it uses less digits than its factorization.

1381623207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11232753.

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 1381623207 is about 37170.1924530934. The cubic root of 1381623207 is about 1113.7726262438.

The spelling of 1381623207 in words is "one billion, three hundred eighty-one million, six hundred twenty-three thousand, two hundred seven".