1154487061 has 32 divisors (see below), whose sum is σ = 1495081728. Its totient is φ = 866972160.

The previous prime is 1154487053. The next prime is 1154487067. The reversal of 1154487061 is 1607844511.

It is not a de Polignac number, because 1154487061 - 2³ = 1154487053 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a self number, because there is not a number n which added to its sum of digits gives 1154487061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1154487067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 133866 + ... + 142228.

It is an arithmetic number, because the mean of its divisors is an integer number (46721304).

Almost surely, 2^1154487061 is an apocalyptic number.

It is an amenable number.

1154487061 is a deficient number, since it is larger than the sum of its proper divisors (340594667).

1154487061 is a wasteful number, since it uses less digits than its factorization.

1154487061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8461.

The product of its (nonzero) digits is 26880, while the sum is 37.

The square root of 1154487061 is about 33977.7436125473. The cubic root of 1154487061 is about 1049.0504070800.

The spelling of 1154487061 in words is "one billion, one hundred fifty-four million, four hundred eighty-seven thousand, sixty-one".