1138555602 has 48 divisors (see below), whose sum is σ = 2646483840. Its totient is φ = 366427152.

The previous prime is 1138555559. The next prime is 1138555619. The reversal of 1138555602 is 2065558311.

It is a happy number.

1138555602 is a `hidden beast` number, since 1 + 13 + 85 + 5 + 560 + 2 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26298 + ... + 54485.

It is an arithmetic number, because the mean of its divisors is an integer number (55135080).

Almost surely, 2^1138555602 is an apocalyptic number.

1138555602 is an abundant number, since it is smaller than the sum of its proper divisors (1507928238).

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

1138555602 is an equidigital number, since it uses as much as digits as its factorization.

1138555602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80829 (or 80817 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 36.

The square root of 1138555602 is about 33742.4895643460. The cubic root of 1138555602 is about 1044.2025469081.

The spelling of 1138555602 in words is "one billion, one hundred thirty-eight million, five hundred fifty-five thousand, six hundred two".