47151970 has 16 divisors (see below), whose sum is σ = 87800760. Its totient is φ = 18210304.

The previous prime is 47151953. The next prime is 47151971. The reversal of 47151970 is 7915174.

It can be written as a sum of positive squares in 4 ways, for example, as 31573161 + 15578809 = 5619^2 + 3947^2 .

It is not an unprimeable number, because it can be changed into a prime (47151971) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81007 + ... + 81586.

Almost surely, 2^47151970 is an apocalyptic number.

47151970 is a deficient number, since it is larger than the sum of its proper divisors (40648790).

47151970 is a wasteful number, since it uses less digits than its factorization.

47151970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162629.

The product of its (nonzero) digits is 8820, while the sum is 34.

The square root of 47151970 is about 6866.7292068349. The cubic root of 47151970 is about 361.2711493307.

It can be divided in two parts, 471 and 51970, that added together give a square (52441 = 229²).

The spelling of 47151970 in words is "forty-seven million, one hundred fifty-one thousand, nine hundred seventy".