1378460201 has 4 divisors (see below), whose sum is σ = 1379616852. Its totient is φ = 1377303552.

The previous prime is 1378460191. The next prime is 1378460231. The reversal of 1378460201 is 1020648731.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 781146601 + 597313600 = 27949^2 + 24440^2 .

It is a cyclic number.

It is not a de Polignac number, because 1378460201 - 2⁶ = 1378460137 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1378460231) 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, 576536 + ... + 578921.

It is an arithmetic number, because the mean of its divisors is an integer number (344904213).

Almost surely, 2^1378460201 is an apocalyptic number.

It is an amenable number.

1378460201 is a deficient number, since it is larger than the sum of its proper divisors (1156651).

1378460201 is a wasteful number, since it uses less digits than its factorization.

1378460201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1156650.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 1378460201 is about 37127.6204597063. The cubic root of 1378460201 is about 1112.9220418840.

The spelling of 1378460201 in words is "one billion, three hundred seventy-eight million, four hundred sixty thousand, two hundred one".