7148737 has 2 divisors, whose sum is σ = 7148738. Its totient is φ = 7148736.

The previous prime is 7148717. The next prime is 7148749. The reversal of 7148737 is 7378417.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6922161 + 226576 = 2631^2 + 476^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7148737 is a prime.

It is a super-2 number, since 2×7148737² = 102208881390338, which contains 22 as substring.

7148737 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 7148696 and 7148705.

It is not a weakly prime, because it can be changed into another prime (7148717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3574368 + 3574369.

It is an arithmetic number, because the mean of its divisors is an integer number (3574369).

Almost surely, 2^7148737 is an apocalyptic number.

It is an amenable number.

7148737 is a deficient number, since it is larger than the sum of its proper divisors (1).

7148737 is an equidigital number, since it uses as much as digits as its factorization.

7148737 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32928, while the sum is 37.

The square root of 7148737 is about 2673.7122133842. The cubic root of 7148737 is about 192.6385082882.

The spelling of 7148737 in words is "seven million, one hundred forty-eight thousand, seven hundred thirty-seven".