47612145 has 32 divisors (see below), whose sum is σ = 87429888. Its totient is φ = 21673728.

The previous prime is 47612129. The next prime is 47612177. The reversal of 47612145 is 54121674.

It is not a de Polignac number, because 47612145 - 2⁴ = 47612129 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28267 + ... + 29903.

It is an arithmetic number, because the mean of its divisors is an integer number (2732184).

Almost surely, 2^47612145 is an apocalyptic number.

It is an amenable number.

47612145 is a deficient number, since it is larger than the sum of its proper divisors (39817743).

47612145 is a wasteful number, since it uses less digits than its factorization.

47612145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1929.

The product of its digits is 6720, while the sum is 30.

The square root of 47612145 is about 6900.1554330319. The cubic root of 47612145 is about 362.4426100189.

It can be divided in two parts, 476 and 12145, that added together give a palindrome (12621).

The spelling of 47612145 in words is "forty-seven million, six hundred twelve thousand, one hundred forty-five".