142987301 has 4 divisors (see below), whose sum is σ = 146029632. Its totient is φ = 139944972.

The previous prime is 142987291. The next prime is 142987321. The reversal of 142987301 is 103789241.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 103789241 = 479 ⋅216679.

It is a cyclic number.

It is not a de Polignac number, because 142987301 - 2¹⁸ = 142725157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142987321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1521095 + ... + 1521188.

It is an arithmetic number, because the mean of its divisors is an integer number (36507408).

Almost surely, 2^142987301 is an apocalyptic number.

It is an amenable number.

142987301 is a deficient number, since it is larger than the sum of its proper divisors (3042331).

142987301 is an equidigital number, since it uses as much as digits as its factorization.

142987301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3042330.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 142987301 is about 11957.7297594485. The cubic root of 142987301 is about 522.9166731943.

The spelling of 142987301 in words is "one hundred forty-two million, nine hundred eighty-seven thousand, three hundred one".