1072542209 has 8 divisors (see below), whose sum is σ = 1103249280. Its totient is φ = 1042163856.

The previous prime is 1072542173. The next prime is 1072542221. The reversal of 1072542209 is 9022452701.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1072542209 - 2¹² = 1072538113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1072547209) 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 7 ways as a sum of consecutive naturals, for example, 75554 + ... + 88619.

It is an arithmetic number, because the mean of its divisors is an integer number (137906160).

Almost surely, 2^1072542209 is an apocalyptic number.

It is an amenable number.

1072542209 is a deficient number, since it is larger than the sum of its proper divisors (30707071).

1072542209 is a wasteful number, since it uses less digits than its factorization.

1072542209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164359.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 1072542209 is about 32749.6902122753. The cubic root of 1072542209 is about 1023.6185105561.

The spelling of 1072542209 in words is "one billion, seventy-two million, five hundred forty-two thousand, two hundred nine".