1358999052 has 12 divisors (see below), whose sum is σ = 3170997816. Its totient is φ = 452999680.

The previous prime is 1358999041. The next prime is 1358999063. The reversal of 1358999052 is 2509998531.

It is an interprime number because it is at equal distance from previous prime (1358999041) and next prime (1358999063).

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 1358998986 and 1358999004.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56624949 + ... + 56624972.

It is an arithmetic number, because the mean of its divisors is an integer number (264249818).

Almost surely, 2^1358999052 is an apocalyptic number.

1358999052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1358999052 is an abundant number, since it is smaller than the sum of its proper divisors (1811998764).

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

1358999052 is a wasteful number, since it uses less digits than its factorization.

1358999052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113249928 (or 113249926 counting only the distinct ones).

The product of its (nonzero) digits is 874800, while the sum is 51.

The square root of 1358999052 is about 36864.6043244736. The cubic root of 1358999052 is about 1107.6597753340.

The spelling of 1358999052 in words is "one billion, three hundred fifty-eight million, nine hundred ninety-nine thousand, fifty-two".