142455213 has 8 divisors (see below), whose sum is σ = 211044800. Its totient is φ = 94970124.

The previous prime is 142455211. The next prime is 142455241. The reversal of 142455213 is 312554241.

It is not a de Polignac number, because 142455213 - 2¹ = 142455211 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 5276119 = 142455213 / (1 + 4 + 2 + 4 + 5 + 5 + 2 + 1 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142455211) 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, 2638033 + ... + 2638086.

It is an arithmetic number, because the mean of its divisors is an integer number (26380600).

Almost surely, 2^142455213 is an apocalyptic number.

It is an amenable number.

142455213 is a deficient number, since it is larger than the sum of its proper divisors (68589587).

142455213 is an equidigital number, since it uses as much as digits as its factorization.

142455213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5276128 (or 5276122 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 142455213 is about 11935.4603178931. The cubic root of 142455213 is about 522.2672366626.

The spelling of 142455213 in words is "one hundred forty-two million, four hundred fifty-five thousand, two hundred thirteen".