756052121 has 4 divisors (see below), whose sum is σ = 824784144. Its totient is φ = 687320100.

The previous prime is 756052103. The next prime is 756052153. The reversal of 756052121 is 121250657.

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 756052121 - 2⁶ = 756052057 is a prime.

It is a super-2 number, since 2×756052121² = 1143229619337197282, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (756052181) 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, 34365995 + ... + 34366016.

It is an arithmetic number, because the mean of its divisors is an integer number (206196036).

Almost surely, 2^756052121 is an apocalyptic number.

It is an amenable number.

756052121 is a deficient number, since it is larger than the sum of its proper divisors (68732023).

756052121 is a wasteful number, since it uses less digits than its factorization.

756052121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68732022.

The product of its (nonzero) digits is 4200, while the sum is 29.

The square root of 756052121 is about 27496.4019646208. The cubic root of 756052121 is about 910.9976262739.

The spelling of 756052121 in words is "seven hundred fifty-six million, fifty-two thousand, one hundred twenty-one".