142153494 has 16 divisors (see below), whose sum is σ = 324922368. Its totient is φ = 40615272.

The previous prime is 142153489. The next prime is 142153511. The reversal of 142153494 is 494351241.

It is a super-3 number, since 3×142153494³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

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, 1692262 + ... + 1692345.

It is an arithmetic number, because the mean of its divisors is an integer number (20307648).

Almost surely, 2^142153494 is an apocalyptic number.

142153494 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

142153494 is an abundant number, since it is smaller than the sum of its proper divisors (182768874).

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

142153494 is a wasteful number, since it uses less digits than its factorization.

142153494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3384619.

The product of its digits is 17280, while the sum is 33.

The square root of 142153494 is about 11922.8140134785. The cubic root of 142153494 is about 521.8982567665.

The spelling of 142153494 in words is "one hundred forty-two million, one hundred fifty-three thousand, four hundred ninety-four".