615145013 has 16 divisors (see below), whose sum is σ = 728407680. Its totient is φ = 508286016.

The previous prime is 615144979. The next prime is 615145021. The reversal of 615145013 is 310541516.

615145013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 615145013 - 2⁸ = 615144757 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (615145043) 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, 151670 + ... + 155672.

It is an arithmetic number, because the mean of its divisors is an integer number (45525480).

Almost surely, 2^615145013 is an apocalyptic number.

It is an amenable number.

615145013 is a deficient number, since it is larger than the sum of its proper divisors (113262667).

615145013 is a wasteful number, since it uses less digits than its factorization.

615145013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4796.

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 615145013 is about 24802.1171072149. The cubic root of 615145013 is about 850.4703339332.

Adding to 615145013 its reverse (310541516), we get a palindrome (925686529).

The spelling of 615145013 in words is "six hundred fifteen million, one hundred forty-five thousand, thirteen".