1425072439 has 12 divisors (see below), whose sum is σ = 1662534504. Its totient is φ = 1217955984.

The previous prime is 1425072419. The next prime is 1425072457. The reversal of 1425072439 is 9342705241.

It is not a de Polignac number, because 1425072439 - 2¹⁷ = 1424941367 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1425072398 and 1425072407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1425072419) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24904 + ... + 58909.

It is an arithmetic number, because the mean of its divisors is an integer number (138544542).

Almost surely, 2^1425072439 is an apocalyptic number.

1425072439 is a deficient number, since it is larger than the sum of its proper divisors (237462065).

1425072439 is an equidigital number, since it uses as much as digits as its factorization.

1425072439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84174 (or 84167 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 37.

The square root of 1425072439 is about 37750.1316421546. The cubic root of 1425072439 is about 1125.3276251386.

The spelling of 1425072439 in words is "one billion, four hundred twenty-five million, seventy-two thousand, four hundred thirty-nine".