7148513 has 2 divisors, whose sum is σ = 7148514. Its totient is φ = 7148512.

The previous prime is 7148501. The next prime is 7148521. The reversal of 7148513 is 3158417.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4231249 + 2917264 = 2057^2 + 1708^2 .

It is a cyclic number.

It is not a de Polignac number, because 7148513 - 2⁴ = 7148497 is a prime.

It is a super-2 number, since 2×7148513² = 102202476222338, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (7118513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3574256 + 3574257.

It is an arithmetic number, because the mean of its divisors is an integer number (3574257).

Almost surely, 2^7148513 is an apocalyptic number.

It is an amenable number.

7148513 is a deficient number, since it is larger than the sum of its proper divisors (1).

7148513 is an equidigital number, since it uses as much as digits as its factorization.

7148513 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3360, while the sum is 29.

The square root of 7148513 is about 2673.6703237310. The cubic root of 7148513 is about 192.6364962090.

It can be divided in two parts, 71 and 48513, that added together give a palindrome (48584).

The spelling of 7148513 in words is "seven million, one hundred forty-eight thousand, five hundred thirteen".