230515212545 has 16 divisors (see below), whose sum is σ = 293010168528. Its totient is φ = 173493135360.

The previous prime is 230515212527. The next prime is 230515212553. The reversal of 230515212545 is 545212515032.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 11607261169 + 218907951376 = 107737^2 + 467876^2 .

It is not a de Polignac number, because 230515212545 - 2²⁴ = 230498435329 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 348014 + ... + 762983.

It is an arithmetic number, because the mean of its divisors is an integer number (18313135533).

Almost surely, 2^230515212545 is an apocalyptic number.

It is an amenable number.

230515212545 is a deficient number, since it is larger than the sum of its proper divisors (62494955983).

230515212545 is a wasteful number, since it uses less digits than its factorization.

230515212545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1113460.

The product of its (nonzero) digits is 60000, while the sum is 35.

Adding to 230515212545 its reverse (545212515032), we get a palindrome (775727727577).

The spelling of 230515212545 in words is "two hundred thirty billion, five hundred fifteen million, two hundred twelve thousand, five hundred forty-five".