1213900941 has 8 divisors (see below), whose sum is σ = 1765674144. Its totient is φ = 735697520.

The previous prime is 1213900931. The next prime is 1213900949. The reversal of 1213900941 is 1490093121.

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

It is a cyclic number.

It is not a de Polignac number, because 1213900941 - 2²² = 1209706637 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1213900899 and 1213900908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213900949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18392406 + ... + 18392471.

It is an arithmetic number, because the mean of its divisors is an integer number (220709268).

Almost surely, 2^1213900941 is an apocalyptic number.

1213900941 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1213900941 is a deficient number, since it is larger than the sum of its proper divisors (551773203).

1213900941 is a wasteful number, since it uses less digits than its factorization.

1213900941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36784891.

The product of its (nonzero) digits is 1944, while the sum is 30.

The square root of 1213900941 is about 34841.0812260469. The cubic root of 1213900941 is about 1066.7461464973.

The spelling of 1213900941 in words is "one billion, two hundred thirteen million, nine hundred thousand, nine hundred forty-one".