1505130551 has 2 divisors, whose sum is σ = 1505130552. Its totient is φ = 1505130550.

The previous prime is 1505130527. The next prime is 1505130553. The reversal of 1505130551 is 1550315051.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1505130551 is a prime.

Together with 1505130553, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1505130551.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1505130553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 752565275 + 752565276.

It is an arithmetic number, because the mean of its divisors is an integer number (752565276).

Almost surely, 2^1505130551 is an apocalyptic number.

1505130551 is a deficient number, since it is larger than the sum of its proper divisors (1).

1505130551 is an equidigital number, since it uses as much as digits as its factorization.

1505130551 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1875, while the sum is 26.

The square root of 1505130551 is about 38796.0120502095. The cubic root of 1505130551 is about 1146.0178717846.

The spelling of 1505130551 in words is "one billion, five hundred five million, one hundred thirty thousand, five hundred fifty-one".