1377253201 has 4 divisors (see below), whose sum is σ = 1384244532. Its totient is φ = 1370261872.

The previous prime is 1377253193. The next prime is 1377253219. The reversal of 1377253201 is 1023527731.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1023527731 = 41 ⋅24964091.

It can be written as a sum of positive squares in 2 ways, for example, as 656384400 + 720868801 = 25620^2 + 26849^2 .

It is a cyclic number.

It is not a de Polignac number, because 1377253201 - 2³ = 1377253193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1377253291) 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, 3495370 + ... + 3495763.

It is an arithmetic number, because the mean of its divisors is an integer number (346061133).

Almost surely, 2^1377253201 is an apocalyptic number.

It is an amenable number.

1377253201 is a deficient number, since it is larger than the sum of its proper divisors (6991331).

1377253201 is an equidigital number, since it uses as much as digits as its factorization.

1377253201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6991330.

The product of its (nonzero) digits is 8820, while the sum is 31.

The square root of 1377253201 is about 37111.3621550058. The cubic root of 1377253201 is about 1112.5971167333.

The spelling of 1377253201 in words is "one billion, three hundred seventy-seven million, two hundred fifty-three thousand, two hundred one".