47142102 has 16 divisors (see below), whose sum is σ = 107753472. Its totient is φ = 13469160.

The previous prime is 47142079. The next prime is 47142113. The reversal of 47142102 is 20124174.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 561174 + ... + 561257.

It is an arithmetic number, because the mean of its divisors is an integer number (6734592).

Almost surely, 2^47142102 is an apocalyptic number.

47142102 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

47142102 is an abundant number, since it is smaller than the sum of its proper divisors (60611370).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

47142102 is a wasteful number, since it uses less digits than its factorization.

47142102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1122443.

The product of its (nonzero) digits is 448, while the sum is 21.

The square root of 47142102 is about 6866.0106320920. The cubic root of 47142102 is about 361.2459452058.

Adding to 47142102 its reverse (20124174), we get a palindrome (67266276).

The spelling of 47142102 in words is "forty-seven million, one hundred forty-two thousand, one hundred two".