201515412034 has 4 divisors (see below), whose sum is σ = 302273118054. Its totient is φ = 100757706016.

The previous prime is 201515412013. The next prime is 201515412037. The reversal of 201515412034 is 430214515102.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 193859687025 + 7655725009 = 440295^2 + 87497^2 .

It is a super-2 number, since 2×201515412034² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 201515411993 and 201515412011.

It is not an unprimeable number, because it can be changed into a prime (201515412037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50378853007 + ... + 50378853010.

Almost surely, 2^201515412034 is an apocalyptic number.

201515412034 is a deficient number, since it is larger than the sum of its proper divisors (100757706020).

201515412034 is a wasteful number, since it uses less digits than its factorization.

201515412034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100757706019.

The product of its (nonzero) digits is 4800, while the sum is 28.

Adding to 201515412034 its reverse (430214515102), we get a palindrome (631729927136).

The spelling of 201515412034 in words is "two hundred one billion, five hundred fifteen million, four hundred twelve thousand, thirty-four".