1352415121 has 4 divisors (see below), whose sum is σ = 1358027044. Its totient is φ = 1346803200.

The previous prime is 1352415073. The next prime is 1352415131. The reversal of 1352415121 is 1215142531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1215142531 = 149 ⋅8155319.

It can be written as a sum of positive squares in 2 ways, for example, as 755150400 + 597264721 = 27480^2 + 24439^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1352415121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1352415131) 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, 2805600 + ... + 2806081.

It is an arithmetic number, because the mean of its divisors is an integer number (339506761).

Almost surely, 2^1352415121 is an apocalyptic number.

It is an amenable number.

1352415121 is a deficient number, since it is larger than the sum of its proper divisors (5611923).

1352415121 is an equidigital number, since it uses as much as digits as its factorization.

1352415121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5611922.

The product of its digits is 1200, while the sum is 25.

The square root of 1352415121 is about 36775.1970898865. The cubic root of 1352415121 is about 1105.8681222856.

Adding to 1352415121 its reverse (1215142531), we get a palindrome (2567557652).

The spelling of 1352415121 in words is "one billion, three hundred fifty-two million, four hundred fifteen thousand, one hundred twenty-one".