1051147987 has 2 divisors, whose sum is σ = 1051147988. Its totient is φ = 1051147986.

The previous prime is 1051147973. The next prime is 1051148023. The reversal of 1051147987 is 7897411501.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1051147987 - 2¹⁹ = 1050623699 is a prime.

It is a super-2 number, since 2×1051147987² = 2209824181148304338, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1051147957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 525573993 + 525573994.

It is an arithmetic number, because the mean of its divisors is an integer number (525573994).

Almost surely, 2^1051147987 is an apocalyptic number.

1051147987 is a deficient number, since it is larger than the sum of its proper divisors (1).

1051147987 is an equidigital number, since it uses as much as digits as its factorization.

1051147987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 70560, while the sum is 43.

The square root of 1051147987 is about 32421.4124769418. The cubic root of 1051147987 is about 1016.7666377133.

The spelling of 1051147987 in words is "one billion, fifty-one million, one hundred forty-seven thousand, nine hundred eighty-seven".