126031397 has 4 divisors (see below), whose sum is σ = 126242400. Its totient is φ = 125820396.

The previous prime is 126031379. The next prime is 126031447. The reversal of 126031397 is 793130621.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 793130621 = 127 ⋅6245123.

It is a cyclic number.

It is not a de Polignac number, because 126031397 - 2⁶ = 126031333 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126031327) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 104603 + ... + 105800.

It is an arithmetic number, because the mean of its divisors is an integer number (31560600).

Almost surely, 2^126031397 is an apocalyptic number.

It is an amenable number.

126031397 is a deficient number, since it is larger than the sum of its proper divisors (211003).

126031397 is an equidigital number, since it uses as much as digits as its factorization.

126031397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211002.

The product of its (nonzero) digits is 6804, while the sum is 32.

The square root of 126031397 is about 11226.3706067455. The cubic root of 126031397 is about 501.3714309153.

The spelling of 126031397 in words is "one hundred twenty-six million, thirty-one thousand, three hundred ninety-seven".