1387212801 has 16 divisors (see below), whose sum is σ = 2109066624. Its totient is φ = 803453184.

The previous prime is 1387212791. The next prime is 1387212803. The reversal of 1387212801 is 1082127831.

It is not a de Polignac number, because 1387212801 - 2⁹ = 1387212289 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1387212803) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1045501 + ... + 1046826.

It is an arithmetic number, because the mean of its divisors is an integer number (131816664).

Almost surely, 2^1387212801 is an apocalyptic number.

It is an amenable number.

1387212801 is a deficient number, since it is larger than the sum of its proper divisors (721853823).

1387212801 is a wasteful number, since it uses less digits than its factorization.

1387212801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2092360.

The product of its (nonzero) digits is 5376, while the sum is 33.

The square root of 1387212801 is about 37245.3057579073. The cubic root of 1387212801 is about 1115.2725914258.

The spelling of 1387212801 in words is "one billion, three hundred eighty-seven million, two hundred twelve thousand, eight hundred one".