75121037 has 4 divisors (see below), whose sum is σ = 75420576. Its totient is φ = 74821500.

The previous prime is 75121031. The next prime is 75121051. The reversal of 75121037 is 73012157.

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.

It is a cyclic number.

It is not a de Polignac number, because 75121037 - 2¹⁰ = 75120013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 75120997 and 75121015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75121031) 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, 149393 + ... + 149894.

It is an arithmetic number, because the mean of its divisors is an integer number (18855144).

Almost surely, 2^75121037 is an apocalyptic number.

It is an amenable number.

75121037 is a deficient number, since it is larger than the sum of its proper divisors (299539).

75121037 is a wasteful number, since it uses less digits than its factorization.

75121037 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299538.

The product of its (nonzero) digits is 1470, while the sum is 26.

The square root of 75121037 is about 8667.2392951851. The cubic root of 75121037 is about 421.9430697443.

The spelling of 75121037 in words is "seventy-five million, one hundred twenty-one thousand, thirty-seven".