1187064057 has 16 divisors (see below), whose sum is σ = 1592553600. Its totient is φ = 786489600.

The previous prime is 1187064041. The next prime is 1187064061. The reversal of 1187064057 is 7504607811.

It is not a de Polignac number, because 1187064057 - 2⁴ = 1187064041 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1187064157) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 431707 + ... + 434447.

It is an arithmetic number, because the mean of its divisors is an integer number (99534600).

Almost surely, 2^1187064057 is an apocalyptic number.

It is an amenable number.

1187064057 is a deficient number, since it is larger than the sum of its proper divisors (405489543).

1187064057 is a wasteful number, since it uses less digits than its factorization.

1187064057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3584.

The product of its (nonzero) digits is 47040, while the sum is 39.

The square root of 1187064057 is about 34453.7959737385. The cubic root of 1187064057 is about 1058.8262958074.

The spelling of 1187064057 in words is "one billion, one hundred eighty-seven million, sixty-four thousand, fifty-seven".