37491133 has 2 divisors, whose sum is σ = 37491134. Its totient is φ = 37491132.

The previous prime is 37491107. The next prime is 37491143. The reversal of 37491133 is 33119473.

37491133 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37491129 + 4 = 6123^2 + 2^2 .

It is a cyclic number.

It is not a de Polignac number, because 37491133 - 2¹³ = 37482941 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 37491095 and 37491104.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (37491143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18745566 + 18745567.

It is an arithmetic number, because the mean of its divisors is an integer number (18745567).

Almost surely, 2^37491133 is an apocalyptic number.

It is an amenable number.

37491133 is a deficient number, since it is larger than the sum of its proper divisors (1).

37491133 is an equidigital number, since it uses as much as digits as its factorization.

37491133 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6804, while the sum is 31.

The square root of 37491133 is about 6123.0003266373. Note that the first 3 decimals coincide. The cubic root of 37491133 is about 334.6900913527.

The spelling of 37491133 in words is "thirty-seven million, four hundred ninety-one thousand, one hundred thirty-three".