1319542425 has 18 divisors (see below), whose sum is σ = 2363447502. Its totient is φ = 703755840.

The previous prime is 1319542403. The next prime is 1319542439. The reversal of 1319542425 is 5242459131.

1319542425 is a `hidden beast` number, since 1 + 3 + 195 + 42 + 425 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 172975104 + 1146567321 = 13152^2 + 33861^2 .

It is not a de Polignac number, because 1319542425 - 2¹⁶ = 1319476889 is a prime.

It is a super-2 number, since 2×1319542425² = 3482384422749761250, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1319542425.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 2932092 + ... + 2932541.

It is an arithmetic number, because the mean of its divisors is an integer number (131302639).

Almost surely, 2^1319542425 is an apocalyptic number.

1319542425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1319542425 is a deficient number, since it is larger than the sum of its proper divisors (1043905077).

1319542425 is a wasteful number, since it uses less digits than its factorization.

1319542425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5864649 (or 5864641 counting only the distinct ones).

The product of its digits is 43200, while the sum is 36.

The square root of 1319542425 is about 36325.5065346651. The cubic root of 1319542425 is about 1096.8345427891.

The spelling of 1319542425 in words is "one billion, three hundred nineteen million, five hundred forty-two thousand, four hundred twenty-five".