1365389913001 has 9 divisors (see below), whose sum is σ = 1373811201399. Its totient is φ = 1357019954664.

The previous prime is 1365389912987. The next prime is 1365389913037. The reversal of 1365389913001 is 1003199835631.

The square root of 1365389913001 is 1168499.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 436240435225 + 929149477776 = 660485^2 + 963924^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1365389913001 is a prime.

It is a super-2 number, since 2×1365389913001² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1365389913061) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 195135835 + ... + 195142831.

Almost surely, 2^{1365389913001} is an apocalyptic number.

1365389913001 is the 1168499-th square number.

1365389913001 is the 584250-th centered octagonal number.

It is an amenable number.

1365389913001 is a deficient number, since it is larger than the sum of its proper divisors (8421288398).

1365389913001 is an frugal number, since it uses more digits than its factorization.

1365389913001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14328 (or 7164 counting only the distinct ones).

The product of its (nonzero) digits is 524880, while the sum is 49.

Multiplying 1365389913001 by its sum of digits (49), we get a square (66904105737049 = 8179493²).

The spelling of 1365389913001 in words is "one trillion, three hundred sixty-five billion, three hundred eighty-nine million, nine hundred thirteen thousand, one".