1300138552 has 8 divisors (see below), whose sum is σ = 2437759800. Its totient is φ = 650069272.

The previous prime is 1300138547. The next prime is 1300138561. The reversal of 1300138552 is 2558310031.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 1300138552.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81258652 + ... + 81258667.

It is an arithmetic number, because the mean of its divisors is an integer number (304719975).

Almost surely, 2^1300138552 is an apocalyptic number.

It is an amenable number.

1300138552 is a deficient number, since it is larger than the sum of its proper divisors (1137621248).

1300138552 is a wasteful number, since it uses less digits than its factorization.

1300138552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162517325 (or 162517321 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 1300138552 is about 36057.4340739881. The cubic root of 1300138552 is about 1091.4316546752.

Adding to 1300138552 its reverse (2558310031), we get a palindrome (3858448583).

The spelling of 1300138552 in words is "one billion, three hundred million, one hundred thirty-eight thousand, five hundred fifty-two".