2919401121 has 32 divisors (see below), whose sum is σ = 4920310528. Its totient is φ = 1498279680.

The previous prime is 2919401119. The next prime is 2919401137. The reversal of 2919401121 is 1211049192.

It is a happy number.

It is not a de Polignac number, because 2919401121 - 2¹ = 2919401119 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2919401171) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 134410 + ... + 154611.

It is an arithmetic number, because the mean of its divisors is an integer number (153759704).

Almost surely, 2^2919401121 is an apocalyptic number.

2919401121 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2919401121 is a deficient number, since it is larger than the sum of its proper divisors (2000909407).

2919401121 is a wasteful number, since it uses less digits than its factorization.

2919401121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289081.

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

The square root of 2919401121 is about 54031.4826837095. The cubic root of 2919401121 is about 1429.2161777761.

The spelling of 2919401121 in words is "two billion, nine hundred nineteen million, four hundred one thousand, one hundred twenty-one".