630630142 has 4 divisors (see below), whose sum is σ = 945945216. Its totient is φ = 315315070.

The previous prime is 630630127. The next prime is 630630157. The reversal of 630630142 is 241036036.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (630630127) and next prime (630630157).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157657534 + ... + 157657537.

It is an arithmetic number, because the mean of its divisors is an integer number (236486304).

Almost surely, 2^630630142 is an apocalyptic number.

630630142 is a deficient number, since it is larger than the sum of its proper divisors (315315074).

630630142 is a wasteful number, since it uses less digits than its factorization.

630630142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315315073.

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 630630142 is about 25112.3503878072. The cubic root of 630630142 is about 857.5476113608.

Adding to 630630142 its reverse (241036036), we get a palindrome (871666178).

The spelling of 630630142 in words is "six hundred thirty million, six hundred thirty thousand, one hundred forty-two".