142253630 has 16 divisors (see below), whose sum is σ = 256196304. Its totient is φ = 56870400.

The previous prime is 142253623. The next prime is 142253633. The reversal of 142253630 is 36352241.

It is a self number, because there is not a number n which added to its sum of digits gives 142253630.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142253633) 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, 27230 + ... + 32030.

It is an arithmetic number, because the mean of its divisors is an integer number (16012269).

Almost surely, 2^142253630 is an apocalyptic number.

142253630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142253630 is a deficient number, since it is larger than the sum of its proper divisors (113942674).

142253630 is a wasteful number, since it uses less digits than its factorization.

142253630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7771.

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 142253630 is about 11927.0126184221. The cubic root of 142253630 is about 522.0207734817.

The spelling of 142253630 in words is "one hundred forty-two million, two hundred fifty-three thousand, six hundred thirty".