162142049 has 4 divisors (see below), whose sum is σ = 164194560. Its totient is φ = 160089540.

The previous prime is 162142037. The next prime is 162142051. The reversal of 162142049 is 940241261.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 940241261 = 947 ⋅992863.

It is a cyclic number.

It is not a de Polignac number, because 162142049 - 2⁴ = 162142033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (162142949) 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 3 ways as a sum of consecutive naturals, for example, 1026137 + ... + 1026294.

It is an arithmetic number, because the mean of its divisors is an integer number (41048640).

Almost surely, 2^162142049 is an apocalyptic number.

It is an amenable number.

162142049 is a deficient number, since it is larger than the sum of its proper divisors (2052511).

162142049 is an equidigital number, since it uses as much as digits as its factorization.

162142049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2052510.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 162142049 is about 12733.5010503789. The cubic root of 162142049 is about 545.2954647360.

The spelling of 162142049 in words is "one hundred sixty-two million, one hundred forty-two thousand, forty-nine".