1244377141 has 4 divisors (see below), whose sum is σ = 1422145312. Its totient is φ = 1066608972.

The previous prime is 1244377139. The next prime is 1244377163. The reversal of 1244377141 is 1417734421.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1244377141 - 2¹ = 1244377139 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1244377097 and 1244377106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1244377171) 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, 88884075 + ... + 88884088.

It is an arithmetic number, because the mean of its divisors is an integer number (355536328).

Almost surely, 2^1244377141 is an apocalyptic number.

It is an amenable number.

1244377141 is a deficient number, since it is larger than the sum of its proper divisors (177768171).

1244377141 is an equidigital number, since it uses as much as digits as its factorization.

1244377141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177768170.

The product of its digits is 18816, while the sum is 34.

The square root of 1244377141 is about 35275.7301979704. The cubic root of 1244377141 is about 1075.5997060527.

The spelling of 1244377141 in words is "one billion, two hundred forty-four million, three hundred seventy-seven thousand, one hundred forty-one".