1509000697 has 4 divisors (see below), whose sum is σ = 1534577040. Its totient is φ = 1483424356.

The previous prime is 1509000679. The next prime is 1509000707. The reversal of 1509000697 is 7960009051.

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.

It is a cyclic number.

It is not a de Polignac number, because 1509000697 - 2⁷ = 1509000569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1509000667) 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, 12788083 + ... + 12788200.

It is an arithmetic number, because the mean of its divisors is an integer number (383644260).

Almost surely, 2^1509000697 is an apocalyptic number.

It is an amenable number.

1509000697 is a deficient number, since it is larger than the sum of its proper divisors (25576343).

1509000697 is an equidigital number, since it uses as much as digits as its factorization.

1509000697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25576342.

The product of its (nonzero) digits is 17010, while the sum is 37.

The square root of 1509000697 is about 38845.8581704665. The cubic root of 1509000697 is about 1146.9992839813. Note that the first 3 decimals are identical.

The spelling of 1509000697 in words is "one billion, five hundred nine million, six hundred ninety-seven", and thus it is an aban number.