142501814 has 64 divisors (see below), whose sum is σ = 273490560. Its totient is φ = 54512640.

The previous prime is 142501811. The next prime is 142501817. The reversal of 142501814 is 418105241.

It is an interprime number because it is at equal distance from previous prime (142501811) and next prime (142501817).

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142501811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1261022 + ... + 1261134.

It is an arithmetic number, because the mean of its divisors is an integer number (4273290).

Almost surely, 2^142501814 is an apocalyptic number.

142501814 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

142501814 is a deficient number, since it is larger than the sum of its proper divisors (130988746).

142501814 is a wasteful number, since it uses less digits than its factorization.

142501814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202 (or 176 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 26.

The square root of 142501814 is about 11937.4123661705. The cubic root of 142501814 is about 522.3241797574.

The spelling of 142501814 in words is "one hundred forty-two million, five hundred one thousand, eight hundred fourteen".