1310040145 has 8 divisors (see below), whose sum is σ = 1664521704. Its totient is φ = 986383104.

The previous prime is 1310040143. The next prime is 1310040157. The reversal of 1310040145 is 5410400131.

It can be written as a sum of positive squares in 4 ways, for example, as 588741696 + 721298449 = 24264^2 + 26857^2 .

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 1310040145 - 2¹ = 1310040143 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1310040143) 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, 7706034 + ... + 7706203.

It is an arithmetic number, because the mean of its divisors is an integer number (208065213).

Almost surely, 2^1310040145 is an apocalyptic number.

It is an amenable number.

1310040145 is a deficient number, since it is larger than the sum of its proper divisors (354481559).

1310040145 is a wasteful number, since it uses less digits than its factorization.

1310040145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15412259.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 1310040145 is about 36194.4767195217. The cubic root of 1310040145 is about 1094.1953583547.

Adding to 1310040145 its reverse (5410400131), we get a palindrome (6720440276).

The spelling of 1310040145 in words is "one billion, three hundred ten million, forty thousand, one hundred forty-five".