61478571 has 32 divisors (see below), whose sum is σ = 104974848. Its totient is φ = 31069440.

The previous prime is 61478567. The next prime is 61478581. The reversal of 61478571 is 17587416.

It is not a de Polignac number, because 61478571 - 2² = 61478567 is a prime.

It is a super-2 number, since 2×61478571² = 7559229384404082, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (61478551) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4951 + ... + 12143.

It is an arithmetic number, because the mean of its divisors is an integer number (3280464).

Almost surely, 2^61478571 is an apocalyptic number.

61478571 is a deficient number, since it is larger than the sum of its proper divisors (43496277).

61478571 is a wasteful number, since it uses less digits than its factorization.

61478571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7251.

The product of its digits is 47040, while the sum is 39.

The square root of 61478571 is about 7840.8271885050. The cubic root of 61478571 is about 394.6764877671.

The spelling of 61478571 in words is "sixty-one million, four hundred seventy-eight thousand, five hundred seventy-one".