7148987 has 2 divisors, whose sum is σ = 7148988. Its totient is φ = 7148986.

The previous prime is 7148951. The next prime is 7148989. The reversal of 7148987 is 7898417.

It is a strong prime.

It is an emirp because it is prime and its reverse (7898417) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7148987 - 2⁶ = 7148923 is a prime.

It is a super-2 number, since 2×7148987² = 102216030252338, which contains 22 as substring.

Together with 7148989, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (7148989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3574493 + 3574494.

It is an arithmetic number, because the mean of its divisors is an integer number (3574494).

Almost surely, 2^7148987 is an apocalyptic number.

7148987 is a deficient number, since it is larger than the sum of its proper divisors (1).

7148987 is an equidigital number, since it uses as much as digits as its factorization.

7148987 is an evil number, because the sum of its binary digits is even.

The product of its digits is 112896, while the sum is 44.

The square root of 7148987 is about 2673.7589644544. The cubic root of 7148987 is about 192.6407538628.

The spelling of 7148987 in words is "seven million, one hundred forty-eight thousand, nine hundred eighty-seven".