675619121 has 2 divisors, whose sum is σ = 675619122. Its totient is φ = 675619120.

The previous prime is 675619111. The next prime is 675619141. The reversal of 675619121 is 121916576.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 339996721 + 335622400 = 18439^2 + 18320^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-675619121 is a prime.

It is a super-2 number, since 2×675619121² = 912922393321625282, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (675619111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 337809560 + 337809561.

It is an arithmetic number, because the mean of its divisors is an integer number (337809561).

Almost surely, 2^675619121 is an apocalyptic number.

It is an amenable number.

675619121 is a deficient number, since it is larger than the sum of its proper divisors (1).

675619121 is an equidigital number, since it uses as much as digits as its factorization.

675619121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 22680, while the sum is 38.

The square root of 675619121 is about 25992.6743718302. The cubic root of 675619121 is about 877.4734351798.

The spelling of 675619121 in words is "six hundred seventy-five million, six hundred nineteen thousand, one hundred twenty-one".