1645527054 has 16 divisors (see below), whose sum is σ = 3311246592. Its totient is φ = 545143608.

The previous prime is 1645527043. The next prime is 1645527067. The reversal of 1645527054 is 4507255461.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 840294 + ... + 842249.

It is an arithmetic number, because the mean of its divisors is an integer number (206952912).

Almost surely, 2^1645527054 is an apocalyptic number.

1645527054 is an abundant number, since it is smaller than the sum of its proper divisors (1665719538).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1645527054 is a wasteful number, since it uses less digits than its factorization.

1645527054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1682711.

The product of its (nonzero) digits is 168000, while the sum is 39.

The square root of 1645527054 is about 40565.0964993306. The cubic root of 1645527054 is about 1180.5970008847.

The spelling of 1645527054 in words is "one billion, six hundred forty-five million, five hundred twenty-seven thousand, fifty-four".