1992090101 has 16 divisors (see below), whose sum is σ = 2147796480. Its totient is φ = 1843871040.

The previous prime is 1992090091. The next prime is 1992090109. The reversal of 1992090101 is 1010902991.

It is a cyclic number.

It is not a de Polignac number, because 1992090101 - 2²² = 1987895797 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1992090109) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52955 + ... + 82391.

It is an arithmetic number, because the mean of its divisors is an integer number (134237280).

Almost surely, 2^1992090101 is an apocalyptic number.

It is an amenable number.

1992090101 is a deficient number, since it is larger than the sum of its proper divisors (155706379).

1992090101 is a wasteful number, since it uses less digits than its factorization.

1992090101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29564.

The product of its (nonzero) digits is 1458, while the sum is 32.

The square root of 1992090101 is about 44632.8365780173. The cubic root of 1992090101 is about 1258.2578806718.

The spelling of 1992090101 in words is "one billion, nine hundred ninety-two million, ninety thousand, one hundred one".