1368972901 has 4 divisors (see below), whose sum is σ = 1398100032. Its totient is φ = 1339845772.

The previous prime is 1368972883. The next prime is 1368972907. The reversal of 1368972901 is 1092798631.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1092798631 = 149 ⋅7334219.

It is a cyclic number.

It is not a de Polignac number, because 1368972901 - 2¹⁷ = 1368841829 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1368972907) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14563495 + ... + 14563588.

It is an arithmetic number, because the mean of its divisors is an integer number (349525008).

Almost surely, 2^1368972901 is an apocalyptic number.

It is an amenable number.

1368972901 is a deficient number, since it is larger than the sum of its proper divisors (29127131).

1368972901 is an equidigital number, since it uses as much as digits as its factorization.

1368972901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29127130.

The product of its (nonzero) digits is 163296, while the sum is 46.

The square root of 1368972901 is about 36999.6337954851. The cubic root of 1368972901 is about 1110.3629203133.

The spelling of 1368972901 in words is "one billion, three hundred sixty-eight million, nine hundred seventy-two thousand, nine hundred one".