142412787 has 24 divisors (see below), whose sum is σ = 225089280. Its totient is φ = 86048880.

The previous prime is 142412783. The next prime is 142412797. The reversal of 142412787 is 787214241.

It is not a de Polignac number, because 142412787 - 2² = 142412783 is a prime.

It is a super-2 number, since 2×142412787² = 40562803802214738, which contains 22 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (142412783) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33538 + ... + 37544.

It is an arithmetic number, because the mean of its divisors is an integer number (9378720).

Almost surely, 2^142412787 is an apocalyptic number.

142412787 is a deficient number, since it is larger than the sum of its proper divisors (82676493).

142412787 is a wasteful number, since it uses less digits than its factorization.

142412787 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4383 (or 4380 counting only the distinct ones).

The product of its digits is 25088, while the sum is 36.

The square root of 142412787 is about 11933.6828766312. The cubic root of 142412787 is about 522.2153843194.

The spelling of 142412787 in words is "one hundred forty-two million, four hundred twelve thousand, seven hundred eighty-seven".