75121622 has 8 divisors (see below), whose sum is σ = 114529872. Its totient is φ = 36945000.

The previous prime is 75121619. The next prime is 75121633. The reversal of 75121622 is 22612157.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 75121591 and 75121600.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 307754 + ... + 307997.

It is an arithmetic number, because the mean of its divisors is an integer number (14316234).

Almost surely, 2^75121622 is an apocalyptic number.

75121622 is a deficient number, since it is larger than the sum of its proper divisors (39408250).

75121622 is a wasteful number, since it uses less digits than its factorization.

75121622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 615814.

The product of its digits is 1680, while the sum is 26.

The square root of 75121622 is about 8667.2730428896. The cubic root of 75121622 is about 421.9441650258.

Adding to 75121622 its reverse (22612157), we get a palindrome (97733779).

The spelling of 75121622 in words is "seventy-five million, one hundred twenty-one thousand, six hundred twenty-two".