1154166242 has 8 divisors (see below), whose sum is σ = 1731399132. Its totient is φ = 577033200.

The previous prime is 1154166241. The next prime is 1154166253. The reversal of 1154166242 is 2426614511.

It can be written as a sum of positive squares in 2 ways, for example, as 987782041 + 166384201 = 31429^2 + 12899^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1154166199 and 1154166208.

It is not an unprimeable number, because it can be changed into a prime (1154166241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20492 + ... + 52232.

Almost surely, 2^1154166242 is an apocalyptic number.

1154166242 is a deficient number, since it is larger than the sum of its proper divisors (577232890).

1154166242 is a wasteful number, since it uses less digits than its factorization.

1154166242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49924.

The product of its digits is 11520, while the sum is 32.

The square root of 1154166242 is about 33973.0222676759. The cubic root of 1154166242 is about 1048.9532249652.

The spelling of 1154166242 in words is "one billion, one hundred fifty-four million, one hundred sixty-six thousand, two hundred forty-two".