1527115949 has 2 divisors, whose sum is σ = 1527115950. Its totient is φ = 1527115948.

The previous prime is 1527115943. The next prime is 1527115951. The reversal of 1527115949 is 9495117251.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1406775049 + 120340900 = 37507^2 + 10970^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1527115949 is a prime.

Together with 1527115951, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1527115943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 763557974 + 763557975.

It is an arithmetic number, because the mean of its divisors is an integer number (763557975).

Almost surely, 2^1527115949 is an apocalyptic number.

It is an amenable number.

1527115949 is a deficient number, since it is larger than the sum of its proper divisors (1).

1527115949 is an equidigital number, since it uses as much as digits as its factorization.

1527115949 is an evil number, because the sum of its binary digits is even.

The product of its digits is 113400, while the sum is 44.

The square root of 1527115949 is about 39078.3309392814. The cubic root of 1527115949 is about 1151.5708712735.

The spelling of 1527115949 in words is "one billion, five hundred twenty-seven million, one hundred fifteen thousand, nine hundred forty-nine".