1381485 has 32 divisors (see below), whose sum is σ = 2580480. Its totient is φ = 618048.

The previous prime is 1381483. The next prime is 1381487. The reversal of 1381485 is 5841831.

It is an interprime number because it is at equal distance from previous prime (1381483) and next prime (1381487).

It is not a de Polignac number, because 1381485 - 2¹ = 1381483 is a prime.

1381485 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1381483) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6084 + ... + 6306.

It is an arithmetic number, because the mean of its divisors is an integer number (80640).

2^1381485 is an apocalyptic number.

1381485 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1381485 is a deficient number, since it is larger than the sum of its proper divisors (1198995).

1381485 is a wasteful number, since it uses less digits than its factorization.

1381485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297.

The product of its digits is 3840, while the sum is 30.

The square root of 1381485 is about 1175.3659004753. The cubic root of 1381485 is about 111.3735487245.

The spelling of 1381485 in words is "one million, three hundred eighty-one thousand, four hundred eighty-five".