1301212144 has 10 divisors (see below), whose sum is σ = 2521098560. Its totient is φ = 650606064.

The previous prime is 1301212141. The next prime is 1301212151. The reversal of 1301212144 is 4412121031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1301212141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40662864 + ... + 40662895.

It is an arithmetic number, because the mean of its divisors is an integer number (252109856).

Almost surely, 2^1301212144 is an apocalyptic number.

It is an amenable number.

1301212144 is a deficient number, since it is larger than the sum of its proper divisors (1219886416).

1301212144 is an equidigital number, since it uses as much as digits as its factorization.

1301212144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81325767 (or 81325761 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 1301212144 is about 36072.3182509802. The cubic root of 1301212144 is about 1091.7319893109.

Adding to 1301212144 its reverse (4412121031), we get a palindrome (5713333175).

The spelling of 1301212144 in words is "one billion, three hundred one million, two hundred twelve thousand, one hundred forty-four".