1525614131 has 2 divisors, whose sum is σ = 1525614132. Its totient is φ = 1525614130.

The previous prime is 1525614047. The next prime is 1525614143. The reversal of 1525614131 is 1314165251.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1525614131 is a prime.

It is a super-2 number, since 2×1525614131² = 4654996953413770322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 1525614094 and 1525614103.

It is not a weakly prime, because it can be changed into another prime (1525614151) by changing a digit.

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 as a sum of consecutive naturals, namely, 762807065 + 762807066.

It is an arithmetic number, because the mean of its divisors is an integer number (762807066).

Almost surely, 2^1525614131 is an apocalyptic number.

1525614131 is a deficient number, since it is larger than the sum of its proper divisors (1).

1525614131 is an equidigital number, since it uses as much as digits as its factorization.

1525614131 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3600, while the sum is 29.

The square root of 1525614131 is about 39059.1107297644. The cubic root of 1525614131 is about 1151.1932494111.

Adding to 1525614131 its reverse (1314165251), we get a palindrome (2839779382).

The spelling of 1525614131 in words is "one billion, five hundred twenty-five million, six hundred fourteen thousand, one hundred thirty-one".