142480421 has 4 divisors (see below), whose sum is σ = 143505600. Its totient is φ = 141455244.

The previous prime is 142480369. The next prime is 142480427. The reversal of 142480421 is 124084241.

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.

It is a cyclic number.

It is not a de Polignac number, because 142480421 - 2⁶ = 142480357 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 (142480427) 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, 512381 + ... + 512658.

It is an arithmetic number, because the mean of its divisors is an integer number (35876400).

Almost surely, 2^142480421 is an apocalyptic number.

It is an amenable number.

142480421 is a deficient number, since it is larger than the sum of its proper divisors (1025179).

142480421 is a wasteful number, since it uses less digits than its factorization.

142480421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1025178.

The product of its (nonzero) digits is 2048, while the sum is 26.

The square root of 142480421 is about 11936.5162840755. The cubic root of 142480421 is about 522.2980405805.

The spelling of 142480421 in words is "one hundred forty-two million, four hundred eighty thousand, four hundred twenty-one".