1890463121 has 8 divisors (see below), whose sum is σ = 2107018080. Its totient is φ = 1685613888.

The previous prime is 1890463067. The next prime is 1890463129. The reversal of 1890463121 is 1213640981.

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 1890463121 - 2²⁶ = 1823354257 is a prime.

It is a super-2 number, since 2×1890463121² = 7147701623722121282, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1890463129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2926091 + ... + 2926736.

It is an arithmetic number, because the mean of its divisors is an integer number (263377260).

Almost surely, 2^1890463121 is an apocalyptic number.

It is an amenable number.

1890463121 is a deficient number, since it is larger than the sum of its proper divisors (216554959).

1890463121 is a wasteful number, since it uses less digits than its factorization.

1890463121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5852863.

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 1890463121 is about 43479.4563098482. The cubic root of 1890463121 is about 1236.4865686671.

The spelling of 1890463121 in words is "one billion, eight hundred ninety million, four hundred sixty-three thousand, one hundred twenty-one".