47722151 has 4 divisors (see below), whose sum is σ = 47810904. Its totient is φ = 47633400.

The previous prime is 47722141. The next prime is 47722159. The reversal of 47722151 is 15122774.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47722151 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47722159) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43565 + ... + 44646.

It is an arithmetic number, because the mean of its divisors is an integer number (11952726).

Almost surely, 2^47722151 is an apocalyptic number.

47722151 is a deficient number, since it is larger than the sum of its proper divisors (88753).

47722151 is an equidigital number, since it uses as much as digits as its factorization.

47722151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88752.

The product of its digits is 3920, while the sum is 29.

The square root of 47722151 is about 6908.1221037269. The cubic root of 47722151 is about 362.7215318110.

The spelling of 47722151 in words is "forty-seven million, seven hundred twenty-two thousand, one hundred fifty-one".