1070252509 has 4 divisors (see below), whose sum is σ = 1085326560. Its totient is φ = 1055178460.

The previous prime is 1070252497. The next prime is 1070252531. The reversal of 1070252509 is 9052520701.

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: 9052520701 = 7 ⋅1293217243.

It is a cyclic number.

It is not a de Polignac number, because 1070252509 - 2⁹ = 1070251997 is a prime.

It is a super-2 number, since 2×1070252509² = 2290880866041590162, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1070252549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7536919 + ... + 7537060.

It is an arithmetic number, because the mean of its divisors is an integer number (271331640).

Almost surely, 2^1070252509 is an apocalyptic number.

It is an amenable number.

1070252509 is a deficient number, since it is larger than the sum of its proper divisors (15074051).

1070252509 is an equidigital number, since it uses as much as digits as its factorization.

1070252509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15074050.

The product of its (nonzero) digits is 6300, while the sum is 31.

The square root of 1070252509 is about 32714.7139525933. The cubic root of 1070252509 is about 1022.8895729207.

The spelling of 1070252509 in words is "one billion, seventy million, two hundred fifty-two thousand, five hundred nine".