1552515131 has 2 divisors, whose sum is σ = 1552515132. Its totient is φ = 1552515130.

The previous prime is 1552515127. The next prime is 1552515149. The reversal of 1552515131 is 1315152551.

It is a weak prime.

It is an emirp because it is prime and its reverse (1315152551) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1552515131 - 2² = 1552515127 is a prime.

It is a super-2 number, since 2×1552515131² = 4820606463967894322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1552515094 and 1552515103.

It is not a weakly prime, because it can be changed into another prime (1552515121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 776257565 + 776257566.

It is an arithmetic number, because the mean of its divisors is an integer number (776257566).

Almost surely, 2^1552515131 is an apocalyptic number.

1552515131 is a deficient number, since it is larger than the sum of its proper divisors (1).

1552515131 is an equidigital number, since it uses as much as digits as its factorization.

1552515131 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3750, while the sum is 29.

The square root of 1552515131 is about 39401.9686183317. The cubic root of 1552515131 is about 1157.9201561597.

Adding to 1552515131 its reverse (1315152551), we get a palindrome (2867667682).

The spelling of 1552515131 in words is "one billion, five hundred fifty-two million, five hundred fifteen thousand, one hundred thirty-one".