1151559551 has 2 divisors, whose sum is σ = 1151559552. Its totient is φ = 1151559550.

The previous prime is 1151559523. The next prime is 1151559557. The reversal of 1151559551 is 1559551511.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1151559551 - 2¹⁴ = 1151543167 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1151559557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 575779775 + 575779776.

It is an arithmetic number, because the mean of its divisors is an integer number (575779776).

Almost surely, 2^1151559551 is an apocalyptic number.

1151559551 is a deficient number, since it is larger than the sum of its proper divisors (1).

1151559551 is an equidigital number, since it uses as much as digits as its factorization.

1151559551 is an evil number, because the sum of its binary digits is even.

The product of its digits is 28125, while the sum is 38.

The square root of 1151559551 is about 33934.6364500933. The cubic root of 1151559551 is about 1048.1629407776.

The spelling of 1151559551 in words is "one billion, one hundred fifty-one million, five hundred fifty-nine thousand, five hundred fifty-one".