142225810 has 8 divisors (see below), whose sum is σ = 256006476. Its totient is φ = 56890320.

The previous prime is 142225801. The next prime is 142225819. The reversal of 142225810 is 18522241.

It is an interprime number because it is at equal distance from previous prime (142225801) and next prime (142225819).

It can be written as a sum of positive squares in 2 ways, for example, as 134165889 + 8059921 = 11583^2 + 2839^2 .

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

It is a super-2 number, since 2×142225810² = 40456362060312200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (142225819) 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, 7111281 + ... + 7111300.

Almost surely, 2^142225810 is an apocalyptic number.

142225810 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142225810 is a deficient number, since it is larger than the sum of its proper divisors (113780666).

142225810 is a wasteful number, since it uses less digits than its factorization.

142225810 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14222588.

The product of its (nonzero) digits is 1280, while the sum is 25.

The square root of 142225810 is about 11925.8463012065. The cubic root of 142225810 is about 521.9867413924.

The spelling of 142225810 in words is "one hundred forty-two million, two hundred twenty-five thousand, eight hundred ten".