1102425509 has 4 divisors (see below), whose sum is σ = 1104242304. Its totient is φ = 1100608716.

The previous prime is 1102425497. The next prime is 1102425557. The reversal of 1102425509 is 9055242011.

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: 9055242011 = 31 ⋅292104581.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1102425509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1102425559) 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, 907487 + ... + 908700.

It is an arithmetic number, because the mean of its divisors is an integer number (276060576).

Almost surely, 2^1102425509 is an apocalyptic number.

It is an amenable number.

1102425509 is a deficient number, since it is larger than the sum of its proper divisors (1816795).

1102425509 is an equidigital number, since it uses as much as digits as its factorization.

1102425509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1816794.

The product of its (nonzero) digits is 3600, while the sum is 29.

The square root of 1102425509 is about 33202.7936927000. The cubic root of 1102425509 is about 1033.0382871710.

The spelling of 1102425509 in words is "one billion, one hundred two million, four hundred twenty-five thousand, five hundred nine".