1059142091 has 4 divisors (see below), whose sum is σ = 1210448112. Its totient is φ = 907836072.

The previous prime is 1059142081. The next prime is 1059142093. The reversal of 1059142091 is 1902419501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1902419501 = 31 ⋅61368371.

It is a cyclic number.

It is not a de Polignac number, because 1059142091 - 2²⁶ = 992033227 is a prime.

It is a super-2 number, since 2×1059142091² = 2243563937855704562, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1059142093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75653000 + ... + 75653013.

It is an arithmetic number, because the mean of its divisors is an integer number (302612028).

Almost surely, 2^1059142091 is an apocalyptic number.

1059142091 is a deficient number, since it is larger than the sum of its proper divisors (151306021).

1059142091 is an equidigital number, since it uses as much as digits as its factorization.

1059142091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151306020.

The product of its (nonzero) digits is 3240, while the sum is 32.

The square root of 1059142091 is about 32544.4632925479. The cubic root of 1059142091 is about 1019.3376742740.

The spelling of 1059142091 in words is "one billion, fifty-nine million, one hundred forty-two thousand, ninety-one".