1527664545 has 24 divisors (see below), whose sum is σ = 2888675712. Its totient is φ = 740685600.

The previous prime is 1527664519. The next prime is 1527664549. The reversal of 1527664545 is 5454667251.

1527664545 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1527664545 - 2⁵ = 1527664513 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1527664545.

It is not an unprimeable number, because it can be changed into a prime (1527664549) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1542601 + ... + 1543590.

It is an arithmetic number, because the mean of its divisors is an integer number (120361488).

Almost surely, 2^1527664545 is an apocalyptic number.

1527664545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1527664545 is a deficient number, since it is larger than the sum of its proper divisors (1361011167).

1527664545 is a wasteful number, since it uses less digits than its factorization.

1527664545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3086213 (or 3086210 counting only the distinct ones).

The product of its digits is 1008000, while the sum is 45.

The square root of 1527664545 is about 39085.3494931285. The cubic root of 1527664545 is about 1151.7087502473.

The spelling of 1527664545 in words is "one billion, five hundred twenty-seven million, six hundred sixty-four thousand, five hundred forty-five".