1425547049 has 2 divisors, whose sum is σ = 1425547050. Its totient is φ = 1425547048.

The previous prime is 1425547043. The next prime is 1425547091. The reversal of 1425547049 is 9407455241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1422421225 + 3125824 = 37715^2 + 1768^2 .

It is an emirp because it is prime and its reverse (9407455241) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1425547049 - 2¹⁶ = 1425481513 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1425546997 and 1425547015.

It is not a weakly prime, because it can be changed into another prime (1425547043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 712773524 + 712773525.

It is an arithmetic number, because the mean of its divisors is an integer number (712773525).

Almost surely, 2^1425547049 is an apocalyptic number.

It is an amenable number.

1425547049 is a deficient number, since it is larger than the sum of its proper divisors (1).

1425547049 is an equidigital number, since it uses as much as digits as its factorization.

1425547049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 201600, while the sum is 41.

The square root of 1425547049 is about 37756.4173220924. The cubic root of 1425547049 is about 1125.4525386632.

The spelling of 1425547049 in words is "one billion, four hundred twenty-five million, five hundred forty-seven thousand, forty-nine".