1605132654 has 32 divisors (see below), whose sum is σ = 3388884480. Its totient is φ = 505435392.

The previous prime is 1605132653. The next prime is 1605132667. The reversal of 1605132654 is 4562315061.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1605132653) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20299 + ... + 60185.

It is an arithmetic number, because the mean of its divisors is an integer number (105902640).

Almost surely, 2^1605132654 is an apocalyptic number.

1605132654 is an abundant number, since it is smaller than the sum of its proper divisors (1783751826).

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

1605132654 is a wasteful number, since it uses less digits than its factorization.

1605132654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40264.

The product of its (nonzero) digits is 21600, while the sum is 33.

The square root of 1605132654 is about 40064.1068039711. The cubic root of 1605132654 is about 1170.8564246028.

The spelling of 1605132654 in words is "one billion, six hundred five million, one hundred thirty-two thousand, six hundred fifty-four".