7245739 has 2 divisors, whose sum is σ = 7245740. Its totient is φ = 7245738.

The previous prime is 7245709. The next prime is 7245743. The reversal of 7245739 is 9375427.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 7245739 - 2¹³ = 7237547 is a prime.

It is a super-2 number, since 2×7245739² = 105001467312242, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 7245698 and 7245707.

It is not a weakly prime, because it can be changed into another prime (7245709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3622869 + 3622870.

It is an arithmetic number, because the mean of its divisors is an integer number (3622870).

Almost surely, 2^7245739 is an apocalyptic number.

7245739 is a deficient number, since it is larger than the sum of its proper divisors (1).

7245739 is an equidigital number, since it uses as much as digits as its factorization.

7245739 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 52920, while the sum is 37.

The square root of 7245739 is about 2691.7910394382. The cubic root of 7245739 is about 193.5059078068.

The spelling of 7245739 in words is "seven million, two hundred forty-five thousand, seven hundred thirty-nine".