1444202137 has 6 divisors (see below), whose sum is σ = 1679990298. Its totient is φ = 1237887504.

The previous prime is 1444202119. The next prime is 1444202147. The reversal of 1444202137 is 7312024441.

It can be written as a sum of positive squares in only one way, i.e., 1291036761 + 153165376 = 35931^2 + 12376^2 .

It is not a de Polignac number, because 1444202137 - 2⁷ = 1444202009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1444202147) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14736708 + ... + 14736805.

It is an arithmetic number, because the mean of its divisors is an integer number (279998383).

Almost surely, 2^1444202137 is an apocalyptic number.

It is an amenable number.

1444202137 is a deficient number, since it is larger than the sum of its proper divisors (235788161).

1444202137 is an equidigital number, since it uses as much as digits as its factorization.

1444202137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29473527 (or 29473520 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 28.

The square root of 1444202137 is about 38002.6596042961. The cubic root of 1444202137 is about 1130.3406018972.

Adding to 1444202137 its reverse (7312024441), we get a palindrome (8756226578).

The spelling of 1444202137 in words is "one billion, four hundred forty-four million, two hundred two thousand, one hundred thirty-seven".