515422023 has 8 divisors (see below), whose sum is σ = 689785200. Its totient is φ = 342336768.

The previous prime is 515422003. The next prime is 515422043. The reversal of 515422023 is 320224515.

It is an interprime number because it is at equal distance from previous prime (515422003) and next prime (515422043).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 515422023 - 2¹² = 515417927 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 515421984 and 515422002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (515422003) 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, 318538 + ... + 320151.

It is an arithmetic number, because the mean of its divisors is an integer number (86223150).

Almost surely, 2^515422023 is an apocalyptic number.

515422023 is a deficient number, since it is larger than the sum of its proper divisors (174363177).

515422023 is a wasteful number, since it uses less digits than its factorization.

515422023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 638961.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 515422023 is about 22702.9078093534. The cubic root of 515422023 is about 801.7783475666.

Adding to 515422023 its reverse (320224515), we get a palindrome (835646538).

The spelling of 515422023 in words is "five hundred fifteen million, four hundred twenty-two thousand, twenty-three".