1515152987 has 2 divisors, whose sum is σ = 1515152988. Its totient is φ = 1515152986.

The previous prime is 1515152963. The next prime is 1515153047. The reversal of 1515152987 is 7892515151.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1515152987 - 2¹⁶ = 1515087451 is a prime.

It is not a weakly prime, because it can be changed into another prime (1515152927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 757576493 + 757576494.

It is an arithmetic number, because the mean of its divisors is an integer number (757576494).

Almost surely, 2^1515152987 is an apocalyptic number.

1515152987 is a deficient number, since it is larger than the sum of its proper divisors (1).

1515152987 is an equidigital number, since it uses as much as digits as its factorization.

1515152987 is an evil number, because the sum of its binary digits is even.

The product of its digits is 126000, while the sum is 44.

The square root of 1515152987 is about 38924.9661143077. The cubic root of 1515152987 is about 1148.5559662143. Note that the first 3 decimals are identical.

The spelling of 1515152987 in words is "one billion, five hundred fifteen million, one hundred fifty-two thousand, nine hundred eighty-seven".