1154056556 has 24 divisors (see below), whose sum is σ = 2147179104. Its totient is φ = 541523840.

The previous prime is 1154056549. The next prime is 1154056559. The reversal of 1154056556 is 6556504511.

It is a happy number.

It is a super-2 number, since 2×1154056556² = 2663693068893162272, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1154056559) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113465 + ... + 123216.

It is an arithmetic number, because the mean of its divisors is an integer number (89465796).

Almost surely, 2^1154056556 is an apocalyptic number.

It is an amenable number.

1154056556 is a deficient number, since it is larger than the sum of its proper divisors (993122548).

1154056556 is a wasteful number, since it uses less digits than its factorization.

1154056556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236761 (or 236759 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 38.

The square root of 1154056556 is about 33971.4079190133. The cubic root of 1154056556 is about 1048.9199948798.

The spelling of 1154056556 in words is "one billion, one hundred fifty-four million, fifty-six thousand, five hundred fifty-six".