2151520045034 has 4 divisors (see below), whose sum is σ = 3227280067554. Its totient is φ = 1075760022516.

The previous prime is 2151520045027. The next prime is 2151520045069. The reversal of 2151520045034 is 4305400251512.

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., 2058493215025 + 93026830009 = 1434745^2 + 305003^2 .

It is a super-2 number, since 2×2151520045034² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 537880011257 + ... + 537880011260.

Almost surely, 2^{2151520045034} is an apocalyptic number.

2151520045034 is a deficient number, since it is larger than the sum of its proper divisors (1075760022520).

2151520045034 is a wasteful number, since it uses less digits than its factorization.

2151520045034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1075760022519.

The product of its (nonzero) digits is 24000, while the sum is 32.

Adding to 2151520045034 its reverse (4305400251512), we get a palindrome (6456920296546).

The spelling of 2151520045034 in words is "two trillion, one hundred fifty-one billion, five hundred twenty million, forty-five thousand, thirty-four".