1125545522156 has 24 divisors (see below), whose sum is σ = 2149515325440. Its totient is φ = 511433838800.

The previous prime is 1125545522119. The next prime is 1125545522173. The reversal of 1125545522156 is 6512255455211.

It is a happy number.

It is a super-4 number, since 4×1125545522156⁴ (a number of 49 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (44).

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 in 7 ways as a sum of consecutive naturals, for example, 4315940 + ... + 4569291.

It is an arithmetic number, because the mean of its divisors is an integer number (89563138560).

Almost surely, 2^{1125545522156} is an apocalyptic number.

It is an amenable number.

1125545522156 is a deficient number, since it is larger than the sum of its proper divisors (1023969803284).

1125545522156 is a wasteful number, since it uses less digits than its factorization.

1125545522156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8888125 (or 8888123 counting only the distinct ones).

The product of its digits is 600000, while the sum is 44.

The spelling of 1125545522156 in words is "one trillion, one hundred twenty-five billion, five hundred forty-five million, five hundred twenty-two thousand, one hundred fifty-six".