1201453215 has 16 divisors (see below), whose sum is σ = 1923827328. Its totient is φ = 640274336.

The previous prime is 1201453213. The next prime is 1201453243. The reversal of 1201453215 is 5123541021.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1201453215 - 2¹ = 1201453213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201453213) 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, 11037 + ... + 50246.

It is an arithmetic number, because the mean of its divisors is an integer number (120239208).

Almost surely, 2^1201453215 is an apocalyptic number.

1201453215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1201453215 is a deficient number, since it is larger than the sum of its proper divisors (722374113).

1201453215 is a wasteful number, since it uses less digits than its factorization.

1201453215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62598.

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 1201453215 is about 34661.9851566525. The cubic root of 1201453215 is about 1063.0873604088.

Adding to 1201453215 its reverse (5123541021), we get a palindrome (6324994236).

The spelling of 1201453215 in words is "one billion, two hundred one million, four hundred fifty-three thousand, two hundred fifteen".