1425272739 has 32 divisors (see below), whose sum is σ = 2093921280. Its totient is φ = 855187200.

The previous prime is 1425272699. The next prime is 1425272743. The reversal of 1425272739 is 9372725241.

It is not a de Polignac number, because 1425272739 - 2¹² = 1425268643 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1425272739.

It is not an unprimeable number, because it can be changed into a prime (1425272749) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1761367 + ... + 1762175.

It is an arithmetic number, because the mean of its divisors is an integer number (65435040).

Almost surely, 2^1425272739 is an apocalyptic number.

1425272739 is a deficient number, since it is larger than the sum of its proper divisors (668648541).

1425272739 is a wasteful number, since it uses less digits than its factorization.

1425272739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1291.

The product of its digits is 211680, while the sum is 42.

The square root of 1425272739 is about 37752.7845198205. The cubic root of 1425272739 is about 1125.3803458653.

The spelling of 1425272739 in words is "one billion, four hundred twenty-five million, two hundred seventy-two thousand, seven hundred thirty-nine".