1042397137 has 4 divisors (see below), whose sum is σ = 1043187556. Its totient is φ = 1041606720.

The previous prime is 1042397131. The next prime is 1042397173. The reversal of 1042397137 is 7317932401.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 770839696 + 271557441 = 27764^2 + 16479^2 .

It is a cyclic number.

It is not a de Polignac number, because 1042397137 - 2⁷ = 1042397009 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1042397096 and 1042397105.

It is not an unprimeable number, because it can be changed into a prime (1042397131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 393228 + ... + 395869.

It is an arithmetic number, because the mean of its divisors is an integer number (260796889).

Almost surely, 2^1042397137 is an apocalyptic number.

It is an amenable number.

1042397137 is a deficient number, since it is larger than the sum of its proper divisors (790419).

1042397137 is an equidigital number, since it uses as much as digits as its factorization.

1042397137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 790418.

The product of its (nonzero) digits is 31752, while the sum is 37.

The square root of 1042397137 is about 32286.1756329238. The cubic root of 1042397137 is about 1013.9372301956.

The spelling of 1042397137 in words is "one billion, forty-two million, three hundred ninety-seven thousand, one hundred thirty-seven".