1201343545 has 16 divisors (see below), whose sum is σ = 1481195520. Its totient is φ = 935023104.

The previous prime is 1201343543. The next prime is 1201343579. The reversal of 1201343545 is 5453431021.

It is a cyclic number.

It is not a de Polignac number, because 1201343545 - 2¹ = 1201343543 is a prime.

It is a super-2 number, since 2×1201343545² = 2886452626226334050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1201343543) 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, 7624 + ... + 49606.

It is an arithmetic number, because the mean of its divisors is an integer number (92574720).

Almost surely, 2^1201343545 is an apocalyptic number.

It is an amenable number.

1201343545 is a deficient number, since it is larger than the sum of its proper divisors (279851975).

1201343545 is an equidigital number, since it uses as much as digits as its factorization.

1201343545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42144.

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 1201343545 is about 34660.4031280653. The cubic root of 1201343545 is about 1063.0550128215.

Adding to 1201343545 its reverse (5453431021), we get a palindrome (6654774566).

The spelling of 1201343545 in words is "one billion, two hundred one million, three hundred forty-three thousand, five hundred forty-five".