1201121546 has 8 divisors (see below), whose sum is σ = 1807126464. Its totient is φ = 598746060.

The previous prime is 1201121543. The next prime is 1201121549. The reversal of 1201121546 is 6451211021.

It is an interprime number because it is at equal distance from previous prime (1201121543) and next prime (1201121549).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1201121543) 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, 906530 + ... + 907853.

It is an arithmetic number, because the mean of its divisors is an integer number (225890808).

Almost surely, 2^1201121546 is an apocalyptic number.

1201121546 is a deficient number, since it is larger than the sum of its proper divisors (606004918).

1201121546 is a wasteful number, since it uses less digits than its factorization.

1201121546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1814716.

The product of its (nonzero) digits is 480, while the sum is 23.

The square root of 1201121546 is about 34657.2004928269. The cubic root of 1201121546 is about 1062.9895273381.

Adding to 1201121546 its reverse (6451211021), we get a palindrome (7652332567).

The spelling of 1201121546 in words is "one billion, two hundred one million, one hundred twenty-one thousand, five hundred forty-six".