37500121 has 4 divisors (see below), whose sum is σ = 37523200. Its totient is φ = 37477044.

The previous prime is 37500119. The next prime is 37500131. The reversal of 37500121 is 12100573.

37500121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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: 12100573 = 47 ⋅257459.

It is a cyclic number.

It is not a de Polignac number, because 37500121 - 2¹ = 37500119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (37500131) 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 in 3 ways as a sum of consecutive naturals, for example, 8901 + ... + 12418.

It is an arithmetic number, because the mean of its divisors is an integer number (9380800).

Almost surely, 2^37500121 is an apocalyptic number.

It is an amenable number.

37500121 is a deficient number, since it is larger than the sum of its proper divisors (23079).

37500121 is a wasteful number, since it uses less digits than its factorization.

37500121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23078.

The product of its (nonzero) digits is 210, while the sum is 19.

The square root of 37500121 is about 6123.7342365586. The cubic root of 37500121 is about 334.7168350469.

Adding to 37500121 its reverse (12100573), we get a palindrome (49600694).

The spelling of 37500121 in words is "thirty-seven million, five hundred thousand, one hundred twenty-one".