142248969 has 24 divisors (see below), whose sum is σ = 209244672. Its totient is φ = 93106080.

The previous prime is 142248949. The next prime is 142248971. The reversal of 142248969 is 969842241.

It is not a de Polignac number, because 142248969 - 2⁵ = 142248937 is a prime.

It is a super-2 number, since 2×142248969² = 40469538363125922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (142248949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 142179 + ... + 143175.

It is an arithmetic number, because the mean of its divisors is an integer number (8718528).

Almost surely, 2^142248969 is an apocalyptic number.

It is an amenable number.

142248969 is a deficient number, since it is larger than the sum of its proper divisors (66995703).

142248969 is a wasteful number, since it uses less digits than its factorization.

142248969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1277 (or 1274 counting only the distinct ones).

The product of its digits is 248832, while the sum is 45.

The square root of 142248969 is about 11926.8172200298. The cubic root of 142248969 is about 522.0150720094.

It can be divided in two parts, 14224896 and 9, that multiplied together give a cube (128024064 = 504³).

The spelling of 142248969 in words is "one hundred forty-two million, two hundred forty-eight thousand, nine hundred sixty-nine".