1352121577 has 4 divisors (see below), whose sum is σ = 1369237120. Its totient is φ = 1335006036.

The previous prime is 1352121559. The next prime is 1352121581. The reversal of 1352121577 is 7751212531.

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: 7751212531 = 6661 ⋅1163671.

It is a cyclic number.

It is not a de Polignac number, because 1352121577 - 2²³ = 1343732969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1352121977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8557653 + ... + 8557810.

It is an arithmetic number, because the mean of its divisors is an integer number (342309280).

Almost surely, 2^1352121577 is an apocalyptic number.

It is an amenable number.

1352121577 is a deficient number, since it is larger than the sum of its proper divisors (17115543).

1352121577 is an equidigital number, since it uses as much as digits as its factorization.

1352121577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17115542.

The product of its digits is 14700, while the sum is 34.

The square root of 1352121577 is about 36771.2058137886. The cubic root of 1352121577 is about 1105.7881063111.

The spelling of 1352121577 in words is "one billion, three hundred fifty-two million, one hundred twenty-one thousand, five hundred seventy-seven".