1201261364 has 12 divisors (see below), whose sum is σ = 2106245988. Its totient is φ = 599476800.

The previous prime is 1201261357. The next prime is 1201261379. The reversal of 1201261364 is 4631621021.

It can be written as a sum of positive squares in 2 ways, for example, as 273571600 + 927689764 = 16540^2 + 30458^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 286127 + ... + 290294.

It is an arithmetic number, because the mean of its divisors is an integer number (175520499).

Almost surely, 2^1201261364 is an apocalyptic number.

It is an amenable number.

1201261364 is a deficient number, since it is larger than the sum of its proper divisors (904984624).

1201261364 is a wasteful number, since it uses less digits than its factorization.

1201261364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 576946 (or 576944 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 1201261364 is about 34659.2175907074. The cubic root of 1201261364 is about 1063.0307719298.

Adding to 1201261364 its reverse (4631621021), we get a palindrome (5832882385).

The spelling of 1201261364 in words is "one billion, two hundred one million, two hundred sixty-one thousand, three hundred sixty-four".