1137421807 has 4 divisors (see below), whose sum is σ = 1137587256. Its totient is φ = 1137256360.

The previous prime is 1137421777. The next prime is 1137421819. The reversal of 1137421807 is 7081247311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7081247311 = 811 ⋅8731501.

It is a cyclic number.

It is not a de Polignac number, because 1137421807 - 2⁷ = 1137421679 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 (1137421007) 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, 71944 + ... + 86317.

It is an arithmetic number, because the mean of its divisors is an integer number (284396814).

Almost surely, 2^1137421807 is an apocalyptic number.

1137421807 is a deficient number, since it is larger than the sum of its proper divisors (165449).

1137421807 is an equidigital number, since it uses as much as digits as its factorization.

1137421807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165448.

The product of its (nonzero) digits is 9408, while the sum is 34.

The square root of 1137421807 is about 33725.6846780017. The cubic root of 1137421807 is about 1043.8558196368.

The spelling of 1137421807 in words is "one billion, one hundred thirty-seven million, four hundred twenty-one thousand, eight hundred seven".