1381853073 has 8 divisors (see below), whose sum is σ = 1842658848. Its totient is φ = 921141344.

The previous prime is 1381853029. The next prime is 1381853089. The reversal of 1381853073 is 3703581831.

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

It is a cyclic number.

It is not a de Polignac number, because 1381853073 - 2¹⁸ = 1381590929 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1381853273) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25186 + ... + 58292.

It is an arithmetic number, because the mean of its divisors is an integer number (230332356).

Almost surely, 2^1381853073 is an apocalyptic number.

It is an amenable number.

1381853073 is a deficient number, since it is larger than the sum of its proper divisors (460805775).

1381853073 is a wasteful number, since it uses less digits than its factorization.

1381853073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47023.

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 1381853073 is about 37173.2843988798. The cubic root of 1381853073 is about 1113.8343903727.

The spelling of 1381853073 in words is "one billion, three hundred eighty-one million, eight hundred fifty-three thousand, seventy-three".