1159511542 has 32 divisors (see below), whose sum is σ = 2026736640. Its totient is φ = 487227840.

The previous prime is 1159511533. The next prime is 1159511543. The reversal of 1159511542 is 2451159511.

It is a junction number, because it is equal to n+sod(n) for n = 1159511498 and 1159511507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1159511543) 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, 354378 + ... + 357634.

It is an arithmetic number, because the mean of its divisors is an integer number (63335520).

Almost surely, 2^1159511542 is an apocalyptic number.

1159511542 is a deficient number, since it is larger than the sum of its proper divisors (867225098).

1159511542 is a wasteful number, since it uses less digits than its factorization.

1159511542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3756.

The product of its digits is 9000, while the sum is 34.

The square root of 1159511542 is about 34051.6011664650. The cubic root of 1159511542 is about 1050.5700735044.

The spelling of 1159511542 in words is "one billion, one hundred fifty-nine million, five hundred eleven thousand, five hundred forty-two".