1045212532155 has 32 divisors (see below), whose sum is σ = 2027078853120. Its totient is φ = 506769711840.

The previous prime is 1045212532153. The next prime is 1045212532171. The reversal of 1045212532155 is 5512352125401.

1045212532155 is a `hidden beast` number, since 1 + 0 + 452 + 1 + 2 + 53 + 2 + 155 = 666.

It is not a de Polignac number, because 1045212532155 - 2¹ = 1045212532153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1045212532153) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 351921927 + ... + 351924896.

It is an arithmetic number, because the mean of its divisors is an integer number (63346214160).

Almost surely, 2^{1045212532155} is an apocalyptic number.

1045212532155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1045212532155 is a deficient number, since it is larger than the sum of its proper divisors (981866320965).

1045212532155 is a wasteful number, since it uses less digits than its factorization.

1045212532155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 703846848 (or 703846842 counting only the distinct ones).

The product of its (nonzero) digits is 60000, while the sum is 36.

Adding to 1045212532155 its reverse (5512352125401), we get a palindrome (6557564657556).

The spelling of 1045212532155 in words is "one trillion, forty-five billion, two hundred twelve million, five hundred thirty-two thousand, one hundred fifty-five".