47151612 has 48 divisors (see below), whose sum is σ = 122707200. Its totient is φ = 15657840.

The previous prime is 47151571. The next prime is 47151613. The reversal of 47151612 is 21615174.

It is a happy number.

47151612 is a `hidden beast` number, since 47 + 1 + 5 + 1 + 612 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47151613) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35089 + ... + 36407.

It is an arithmetic number, because the mean of its divisors is an integer number (2556400).

Almost surely, 2^47151612 is an apocalyptic number.

It is an amenable number.

47151612 is an abundant number, since it is smaller than the sum of its proper divisors (75555588).

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

47151612 is a wasteful number, since it uses less digits than its factorization.

47151612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1663 (or 1655 counting only the distinct ones).

The product of its digits is 1680, while the sum is 27.

The square root of 47151612 is about 6866.7031390617. The cubic root of 47151612 is about 361.2702350147.

Adding to 47151612 its reverse (21615174), we get a palindrome (68766786).

The spelling of 47151612 in words is "forty-seven million, one hundred fifty-one thousand, six hundred twelve".