1542342425 has 36 divisors (see below), whose sum is σ = 2188034436. Its totient is φ = 1071897600.

The previous prime is 1542342421. The next prime is 1542342427. The reversal of 1542342425 is 5242432451.

It can be written as a sum of positive squares in 18 ways, for example, as 1307762569 + 234579856 = 36163^2 + 15316^2 .

It is not a de Polignac number, because 1542342425 - 2² = 1542342421 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1542342391 and 1542342400.

It is not an unprimeable number, because it can be changed into a prime (1542342421) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 85715 + ... + 102135.

Almost surely, 2^1542342425 is an apocalyptic number.

It is an amenable number.

1542342425 is a deficient number, since it is larger than the sum of its proper divisors (645692011).

1542342425 is a wasteful number, since it uses less digits than its factorization.

1542342425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16478 (or 16456 counting only the distinct ones).

The product of its digits is 38400, while the sum is 32.

The square root of 1542342425 is about 39272.6676583091. The cubic root of 1542342425 is about 1155.3855587043.

Adding to 1542342425 its reverse (5242432451), we get a palindrome (6784774876).

The spelling of 1542342425 in words is "one billion, five hundred forty-two million, three hundred forty-two thousand, four hundred twenty-five".