1401345 has 48 divisors (see below), whose sum is σ = 2808000. Its totient is φ = 639360.

The previous prime is 1401319. The next prime is 1401349. The reversal of 1401345 is 5431041.

It is a happy number.

It is not a de Polignac number, because 1401345 - 2⁷ = 1401217 is a prime.

1401345 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1401349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9331 + ... + 9479.

It is an arithmetic number, because the mean of its divisors is an integer number (58500).

2^1401345 is an apocalyptic number.

1401345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1401345 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

1401345 is a wasteful number, since it uses less digits than its factorization.

1401345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190 (or 187 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 1401345 is about 1183.7841864124. The cubic root of 1401345 is about 111.9047074234.

Adding to 1401345 its reverse (5431041), we get a palindrome (6832386).

It can be divided in two parts, 140 and 1345, that added together give a triangular number (1485 = T₅₄).

The spelling of 1401345 in words is "one million, four hundred one thousand, three hundred forty-five".