1370145 has 16 divisors (see below), whose sum is σ = 2505600. Its totient is φ = 626304.

The previous prime is 1370143. The next prime is 1370177. The reversal of 1370145 is 5410731.

It is not a de Polignac number, because 1370145 - 2¹ = 1370143 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

1370145 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1370143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6420 + ... + 6629.

It is an arithmetic number, because the mean of its divisors is an integer number (156600).

2^1370145 is an apocalyptic number.

1370145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1370145 is a deficient number, since it is larger than the sum of its proper divisors (1135455).

1370145 is a wasteful number, since it uses less digits than its factorization.

1370145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13064.

The product of its (nonzero) digits is 420, while the sum is 21.

The square root of 1370145 is about 1170.5319303633. The cubic root of 1370145 is about 111.0679723276.

Adding to 1370145 its reverse (5410731), we get a palindrome (6780876).

The spelling of 1370145 in words is "one million, three hundred seventy thousand, one hundred forty-five".