142621459 has 8 divisors (see below), whose sum is σ = 149824800. Its totient is φ = 135501696.

The previous prime is 142621417. The next prime is 142621471. The reversal of 142621459 is 954126241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 142621459 - 2¹⁹ = 142097171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142621489) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17382 + ... + 24235.

It is an arithmetic number, because the mean of its divisors is an integer number (18728100).

Almost surely, 2^142621459 is an apocalyptic number.

142621459 is a deficient number, since it is larger than the sum of its proper divisors (7203341).

142621459 is a wasteful number, since it uses less digits than its factorization.

142621459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41789.

The product of its digits is 17280, while the sum is 34.

The square root of 142621459 is about 11942.4226604153. The cubic root of 142621459 is about 522.4703205748.

The spelling of 142621459 in words is "one hundred forty-two million, six hundred twenty-one thousand, four hundred fifty-nine".