1381692045 has 8 divisors (see below), whose sum is σ = 2210707296. Its totient is φ = 736902416.

The previous prime is 1381692043. The next prime is 1381692061. The reversal of 1381692045 is 5402961831.

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 1381692045 - 2¹ = 1381692043 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1381691994 and 1381692012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1381692043) 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, 46056387 + ... + 46056416.

It is an arithmetic number, because the mean of its divisors is an integer number (276338412).

Almost surely, 2^1381692045 is an apocalyptic number.

1381692045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1381692045 is a deficient number, since it is larger than the sum of its proper divisors (829015251).

1381692045 is an equidigital number, since it uses as much as digits as its factorization.

1381692045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92112811.

The product of its (nonzero) digits is 51840, while the sum is 39.

The square root of 1381692045 is about 37171.1184254658. The cubic root of 1381692045 is about 1113.7911234738.

The spelling of 1381692045 in words is "one billion, three hundred eighty-one million, six hundred ninety-two thousand, forty-five".