100425397 has 2 divisors, whose sum is σ = 100425398. Its totient is φ = 100425396.

The previous prime is 100425389. The next prime is 100425421. The reversal of 100425397 is 793524001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 99082116 + 1343281 = 9954^2 + 1159^2 .

It is a cyclic number.

It is not a de Polignac number, because 100425397 - 2³ = 100425389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100422397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50212698 + 50212699.

It is an arithmetic number, because the mean of its divisors is an integer number (50212699).

Almost surely, 2^100425397 is an apocalyptic number.

It is an amenable number.

100425397 is a deficient number, since it is larger than the sum of its proper divisors (1).

100425397 is an equidigital number, since it uses as much as digits as its factorization.

100425397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 100425397 is about 10021.2472776596. The cubic root of 100425397 is about 464.8161249335.

Adding to 100425397 its reverse (793524001), we get a palindrome (893949398).

The spelling of 100425397 in words is "one hundred million, four hundred twenty-five thousand, three hundred ninety-seven".