1540000169 has 8 divisors (see below), whose sum is σ = 1549474080. Its totient is φ = 1530547200.

The previous prime is 1540000157. The next prime is 1540000181. The reversal of 1540000169 is 9610000451.

It is an interprime number because it is at equal distance from previous prime (1540000157) and next prime (1540000181).

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1540000169 is a prime.

It is a super-2 number, since 2×1540000169² = 4743201041040057122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1540000769) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 157514 + ... + 167004.

It is an arithmetic number, because the mean of its divisors is an integer number (193684260).

Almost surely, 2^1540000169 is an apocalyptic number.

It is an amenable number.

1540000169 is a deficient number, since it is larger than the sum of its proper divisors (9473911).

1540000169 is an equidigital number, since it uses as much as digits as its factorization.

1540000169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10471.

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 1540000169 is about 39242.8358939565. The cubic root of 1540000169 is about 1154.8003925342.

The spelling of 1540000169 in words is "one billion, five hundred forty million, one hundred sixty-nine", and thus it is an aban number.