2145912023 has 16 divisors (see below), whose sum is σ = 2310716160. Its totient is φ = 1985558400.

The previous prime is 2145912011. The next prime is 2145912031. The reversal of 2145912023 is 3202195412.

It is a cyclic number.

It is not a de Polignac number, because 2145912023 - 2⁴ = 2145912007 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2145932023) 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, 455108 + ... + 459798.

It is an arithmetic number, because the mean of its divisors is an integer number (144419760).

Almost surely, 2^2145912023 is an apocalyptic number.

2145912023 is a deficient number, since it is larger than the sum of its proper divisors (164804137).

2145912023 is a wasteful number, since it uses less digits than its factorization.

2145912023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5158.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 2145912023 is about 46323.9897137541. The cubic root of 2145912023 is about 1289.8443461412.

The spelling of 2145912023 in words is "two billion, one hundred forty-five million, nine hundred twelve thousand, twenty-three".