1156481554 has 16 divisors (see below), whose sum is σ = 1765869120. Its totient is φ = 567887760.

The previous prime is 1156481539. The next prime is 1156481591. The reversal of 1156481554 is 4551846511.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76387 + ... + 90265.

It is an arithmetic number, because the mean of its divisors is an integer number (110366820).

Almost surely, 2^1156481554 is an apocalyptic number.

1156481554 is a deficient number, since it is larger than the sum of its proper divisors (609387566).

1156481554 is a wasteful number, since it uses less digits than its factorization.

1156481554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14625.

The product of its digits is 96000, while the sum is 40.

The square root of 1156481554 is about 34007.0809391221. The cubic root of 1156481554 is about 1049.6541730349.

The spelling of 1156481554 in words is "one billion, one hundred fifty-six million, four hundred eighty-one thousand, five hundred fifty-four".