142191024 has 40 divisors (see below), whose sum is σ = 375874752. Its totient is φ = 46294080.

The previous prime is 142191019. The next prime is 142191029. The reversal of 142191024 is 420191241.

It is an interprime number because it is at equal distance from previous prime (142191019) and next prime (142191029).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 142190985 and 142191003.

It is not an unprimeable number, because it can be changed into a prime (142191029) 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 7 ways as a sum of consecutive naturals, for example, 32382 + ... + 36509.

Almost surely, 2^142191024 is an apocalyptic number.

It is an amenable number.

142191024 is an abundant number, since it is smaller than the sum of its proper divisors (233683728).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

142191024 is a wasteful number, since it uses less digits than its factorization.

142191024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68945 (or 68939 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 142191024 is about 11924.3877830269. The cubic root of 142191024 is about 521.9441815801.

The spelling of 142191024 in words is "one hundred forty-two million, one hundred ninety-one thousand, twenty-four".