1381103901 has 24 divisors (see below), whose sum is σ = 2151152640. Its totient is φ = 850996800.

The previous prime is 1381103831. The next prime is 1381103903. The reversal of 1381103901 is 1093011831.

It is a happy number.

It is not a de Polignac number, because 1381103901 - 2¹¹ = 1381101853 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1381103903) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 91485 + ... + 105506.

It is an arithmetic number, because the mean of its divisors is an integer number (89631360).

Almost surely, 2^1381103901 is an apocalyptic number.

It is an amenable number.

1381103901 is a deficient number, since it is larger than the sum of its proper divisors (770048739).

1381103901 is a wasteful number, since it uses less digits than its factorization.

1381103901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197057 (or 197054 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 27.

The square root of 1381103901 is about 37163.2062798677. The cubic root of 1381103901 is about 1113.6330654515.

The spelling of 1381103901 in words is "one billion, three hundred eighty-one million, one hundred three thousand, nine hundred one".