1941092121 has 4 divisors (see below), whose sum is σ = 2588122832. Its totient is φ = 1294061412.

The previous prime is 1941092059. The next prime is 1941092137. The reversal of 1941092121 is 1212901491.

It is a happy number.

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.

It is not a de Polignac number, because 1941092121 - 2¹⁴ = 1941075737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1941092141) 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, 323515351 + ... + 323515356.

It is an arithmetic number, because the mean of its divisors is an integer number (647030708).

Almost surely, 2^1941092121 is an apocalyptic number.

It is an amenable number.

1941092121 is a deficient number, since it is larger than the sum of its proper divisors (647030711).

1941092121 is an equidigital number, since it uses as much as digits as its factorization.

1941092121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 647030710.

The product of its (nonzero) digits is 1296, while the sum is 30.

The square root of 1941092121 is about 44057.8270117808. The cubic root of 1941092121 is about 1247.4276960462.

The spelling of 1941092121 in words is "one billion, nine hundred forty-one million, ninety-two thousand, one hundred twenty-one".