1051325513 has 4 divisors (see below), whose sum is σ = 1201514880. Its totient is φ = 901136148.

The previous prime is 1051325507. The next prime is 1051325519. The reversal of 1051325513 is 3155231501.

It is a happy number.

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: 3155231501 = 17 ⋅185601853.

It is an interprime number because it is at equal distance from previous prime (1051325507) and next prime (1051325519).

It is a cyclic number.

It is not a de Polignac number, because 1051325513 - 2¹² = 1051321417 is a prime.

It is a super-2 number, since 2×1051325513² = 2210570668569426338, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1051325519) 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, 75094673 + ... + 75094686.

It is an arithmetic number, because the mean of its divisors is an integer number (300378720).

Almost surely, 2^1051325513 is an apocalyptic number.

It is an amenable number.

1051325513 is a deficient number, since it is larger than the sum of its proper divisors (150189367).

1051325513 is an equidigital number, since it uses as much as digits as its factorization.

1051325513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150189366.

The product of its (nonzero) digits is 2250, while the sum is 26.

The square root of 1051325513 is about 32424.1501507750. The cubic root of 1051325513 is about 1016.8238742952.

The spelling of 1051325513 in words is "one billion, fifty-one million, three hundred twenty-five thousand, five hundred thirteen".