125820007 has 2 divisors, whose sum is σ = 125820008. Its totient is φ = 125820006.

The previous prime is 125819983. The next prime is 125820029. The reversal of 125820007 is 700028521.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 125820007 - 2⁷ = 125819879 is a prime.

It is a super-2 number, since 2×125820007² = 31661348322960098, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125829007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62910003 + 62910004.

It is an arithmetic number, because the mean of its divisors is an integer number (62910004).

Almost surely, 2^125820007 is an apocalyptic number.

125820007 is a deficient number, since it is larger than the sum of its proper divisors (1).

125820007 is an equidigital number, since it uses as much as digits as its factorization.

125820007 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1120, while the sum is 25.

The square root of 125820007 is about 11216.9517695317. The cubic root of 125820007 is about 501.0909605456.

Adding to 125820007 its reverse (700028521), we get a palindrome (825848528).

The spelling of 125820007 in words is "one hundred twenty-five million, eight hundred twenty thousand, seven".