1449521137 has 2 divisors, whose sum is σ = 1449521138. Its totient is φ = 1449521136.

The previous prime is 1449521119. The next prime is 1449521207. The reversal of 1449521137 is 7311259441.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1106493696 + 343027441 = 33264^2 + 18521^2 .

It is a cyclic number.

It is not a de Polignac number, because 1449521137 - 2²³ = 1441132529 is a prime.

It is a super-2 number, since 2×1449521137² = 4202223053219545538, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1449521096 and 1449521105.

It is not a weakly prime, because it can be changed into another prime (1449521107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 724760568 + 724760569.

It is an arithmetic number, because the mean of its divisors is an integer number (724760569).

Almost surely, 2^1449521137 is an apocalyptic number.

It is an amenable number.

1449521137 is a deficient number, since it is larger than the sum of its proper divisors (1).

1449521137 is an equidigital number, since it uses as much as digits as its factorization.

1449521137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30240, while the sum is 37.

The square root of 1449521137 is about 38072.5772308626. The cubic root of 1449521137 is about 1131.7265841617.

The spelling of 1449521137 in words is "one billion, four hundred forty-nine million, five hundred twenty-one thousand, one hundred thirty-seven".