1392487201 has 4 divisors (see below), whose sum is σ = 1591413952. Its totient is φ = 1193560452.

The previous prime is 1392487157. The next prime is 1392487231. The reversal of 1392487201 is 1027842931.

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: 1027842931 = 71 ⋅14476661.

It is not a de Polignac number, because 1392487201 - 2¹¹ = 1392485153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1392487231) 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, 99463365 + ... + 99463378.

It is an arithmetic number, because the mean of its divisors is an integer number (397853488).

Almost surely, 2^1392487201 is an apocalyptic number.

It is an amenable number.

1392487201 is a deficient number, since it is larger than the sum of its proper divisors (198926751).

1392487201 is an equidigital number, since it uses as much as digits as its factorization.

1392487201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198926750.

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 1392487201 is about 37316.0448198895. The cubic root of 1392487201 is about 1116.6842840417.

The spelling of 1392487201 in words is "one billion, three hundred ninety-two million, four hundred eighty-seven thousand, two hundred one".