1149553587 has 16 divisors (see below), whose sum is σ = 1886447360. Its totient is φ = 606357792.

The previous prime is 1149553579. The next prime is 1149553631. The reversal of 1149553587 is 7853559411.

It is not a de Polignac number, because 1149553587 - 2³ = 1149553579 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1149553507) 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, 2105137 + ... + 2105682.

It is an arithmetic number, because the mean of its divisors is an integer number (117902960).

Almost surely, 2^1149553587 is an apocalyptic number.

1149553587 is a deficient number, since it is larger than the sum of its proper divisors (736893773).

1149553587 is a wasteful number, since it uses less digits than its factorization.

1149553587 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4210842.

The product of its digits is 756000, while the sum is 48.

The square root of 1149553587 is about 33905.0672761462. The cubic root of 1149553587 is about 1047.5539697607.

The spelling of 1149553587 in words is "one billion, one hundred forty-nine million, five hundred fifty-three thousand, five hundred eighty-seven".