1242264361 has 8 divisors (see below), whose sum is σ = 1339360904. Its totient is φ = 1145387520.

The previous prime is 1242264349. The next prime is 1242264377. The reversal of 1242264361 is 1634622421.

It can be written as a sum of positive squares in 4 ways, for example, as 318408336 + 923856025 = 17844^2 + 30395^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1242264361 - 2²¹ = 1240167209 is a prime.

It is a super-2 number, since 2×1242264361² = 3086441485221476642, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1242264301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43080 + ... + 65881.

It is an arithmetic number, because the mean of its divisors is an integer number (167420113).

Almost surely, 2^1242264361 is an apocalyptic number.

It is an amenable number.

1242264361 is a deficient number, since it is larger than the sum of its proper divisors (97096543).

1242264361 is a wasteful number, since it uses less digits than its factorization.

1242264361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109851.

The product of its digits is 13824, while the sum is 31.

The square root of 1242264361 is about 35245.7708243131. The cubic root of 1242264361 is about 1074.9906214433.

Adding to 1242264361 its reverse (1634622421), we get a palindrome (2876886782).

The spelling of 1242264361 in words is "one billion, two hundred forty-two million, two hundred sixty-four thousand, three hundred sixty-one".