1238487901 has 8 divisors (see below), whose sum is σ = 1415678144. Its totient is φ = 1061363520.

The previous prime is 1238487889. The next prime is 1238487907. The reversal of 1238487901 is 1097848321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1238487901 - 2¹³ = 1238479709 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 (1238487907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34261 + ... + 60421.

It is an arithmetic number, because the mean of its divisors is an integer number (176959768).

Almost surely, 2^1238487901 is an apocalyptic number.

It is an amenable number.

1238487901 is a deficient number, since it is larger than the sum of its proper divisors (177190243).

1238487901 is an equidigital number, since it uses as much as digits as its factorization.

1238487901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32931.

The product of its (nonzero) digits is 96768, while the sum is 43.

The square root of 1238487901 is about 35192.1568108577. The cubic root of 1238487901 is about 1073.9001987352.

The spelling of 1238487901 in words is "one billion, two hundred thirty-eight million, four hundred eighty-seven thousand, nine hundred one".