609890132 has 6 divisors (see below), whose sum is σ = 1067307738. Its totient is φ = 304945064.

The previous prime is 609890117. The next prime is 609890137. The reversal of 609890132 is 231098906.

It can be written as a sum of positive squares in only one way, i.e., 551122576 + 58767556 = 23476^2 + 7666^2 .

It is a super-2 number, since 2×609890132² = 743931946221954848, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (609890137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76236263 + ... + 76236270.

It is an arithmetic number, because the mean of its divisors is an integer number (177884623).

Almost surely, 2^609890132 is an apocalyptic number.

It is an amenable number.

609890132 is a deficient number, since it is larger than the sum of its proper divisors (457417606).

609890132 is a wasteful number, since it uses less digits than its factorization.

609890132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152472537 (or 152472535 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 38.

The square root of 609890132 is about 24695.9537576503. The cubic root of 609890132 is about 848.0416887212.

The spelling of 609890132 in words is "six hundred nine million, eight hundred ninety thousand, one hundred thirty-two".