1161442435 has 32 divisors (see below), whose sum is σ = 1480550400. Its totient is φ = 873396480.

The previous prime is 1161442433. The next prime is 1161442493. The reversal of 1161442435 is 5342441611.

It is not a de Polignac number, because 1161442435 - 2¹ = 1161442433 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a junction number, because it is equal to n+sod(n) for n = 1161442397 and 1161442406.

It is not an unprimeable number, because it can be changed into a prime (1161442433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 813192 + ... + 814618.

It is an arithmetic number, because the mean of its divisors is an integer number (46267200).

Almost surely, 2^1161442435 is an apocalyptic number.

1161442435 is a deficient number, since it is larger than the sum of its proper divisors (319107965).

1161442435 is a wasteful number, since it uses less digits than its factorization.

1161442435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1611.

The product of its digits is 11520, while the sum is 31.

The square root of 1161442435 is about 34079.9418280020. The cubic root of 1161442435 is about 1051.1529089918.

It can be divided in two parts, 1 and 161442435, that added together give a square (161442436 = 12706²).

The spelling of 1161442435 in words is "one billion, one hundred sixty-one million, four hundred forty-two thousand, four hundred thirty-five".