142674387 has 36 divisors (see below), whose sum is σ = 209214360. Its totient is φ = 86456832.

The previous prime is 142674379. The next prime is 142674391. The reversal of 142674387 is 783476241.

It is not a de Polignac number, because 142674387 - 2³ = 142674379 is a prime.

It is not an unprimeable number, because it can be changed into a prime (142674347) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1603039 + ... + 1603127.

It is an arithmetic number, because the mean of its divisors is an integer number (5811510).

Almost surely, 2^142674387 is an apocalyptic number.

142674387 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

142674387 is a deficient number, since it is larger than the sum of its proper divisors (66539973).

142674387 is an equidigital number, since it uses as much as digits as its factorization.

142674387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212 (or 152 counting only the distinct ones).

The product of its digits is 225792, while the sum is 42.

The square root of 142674387 is about 11944.6384206471. The cubic root of 142674387 is about 522.5349435968.

The spelling of 142674387 in words is "one hundred forty-two million, six hundred seventy-four thousand, three hundred eighty-seven".