615201423 has 16 divisors (see below), whose sum is σ = 872140896. Its totient is φ = 384399360.

The previous prime is 615201413. The next prime is 615201463. The reversal of 615201423 is 324102516.

It is not a de Polignac number, because 615201423 - 2⁴ = 615201407 is a prime.

It is a super-2 number, since 2×615201423² = 756945581722449858, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 615201393 and 615201402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (615201413) 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, 12736 + ... + 37317.

It is an arithmetic number, because the mean of its divisors is an integer number (54508806).

Almost surely, 2^615201423 is an apocalyptic number.

615201423 is a deficient number, since it is larger than the sum of its proper divisors (256939473).

615201423 is a wasteful number, since it uses less digits than its factorization.

615201423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50314.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 615201423 is about 24803.2542824525. The cubic root of 615201423 is about 850.4963297359.

Adding to 615201423 its reverse (324102516), we get a palindrome (939303939).

The spelling of 615201423 in words is "six hundred fifteen million, two hundred one thousand, four hundred twenty-three".