215142023 has 16 divisors (see below), whose sum is σ = 230091456. Its totient is φ = 200724480.

The previous prime is 215142017. The next prime is 215142049. The reversal of 215142023 is 320241512.

It is a cyclic number.

It is not a de Polignac number, because 215142023 - 2¹² = 215137927 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 215141986 and 215142004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215144023) 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, 162203 + ... + 163523.

It is an arithmetic number, because the mean of its divisors is an integer number (14380716).

Almost surely, 2^215142023 is an apocalyptic number.

215142023 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

215142023 is a deficient number, since it is larger than the sum of its proper divisors (14949433).

215142023 is a wasteful number, since it uses less digits than its factorization.

215142023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1514.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 215142023 is about 14667.7204432045. The cubic root of 215142023 is about 599.2045226776.

Adding to 215142023 its reverse (320241512), we get a palindrome (535383535).

The spelling of 215142023 in words is "two hundred fifteen million, one hundred forty-two thousand, twenty-three".