1345540001 has 4 divisors (see below), whose sum is σ = 1449043092. Its totient is φ = 1242036912.

The previous prime is 1345539959. The next prime is 1345540051. The reversal of 1345540001 is 1000455431.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 73547776 + 1271992225 = 8576^2 + 35665^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1345540001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1345540051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51751526 + ... + 51751551.

It is an arithmetic number, because the mean of its divisors is an integer number (362260773).

Almost surely, 2^1345540001 is an apocalyptic number.

It is an amenable number.

1345540001 is a deficient number, since it is larger than the sum of its proper divisors (103503091).

1345540001 is a wasteful number, since it uses less digits than its factorization.

1345540001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103503090.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 1345540001 is about 36681.6030320377. The cubic root of 1345540001 is about 1103.9910122426.

Adding to 1345540001 its reverse (1000455431), we get a palindrome (2345995432).

The spelling of 1345540001 in words is "one billion, three hundred forty-five million, five hundred forty thousand, one".