61464331 has 4 divisors (see below), whose sum is σ = 62038872. Its totient is φ = 60889792.

The previous prime is 61464313. The next prime is 61464343. The reversal of 61464331 is 13346416.

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

It is a cyclic number.

It is not a de Polignac number, because 61464331 - 2⁹ = 61463819 is a prime.

It is a super-2 number, since 2×61464331² = 7555727970555122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 61464331.

It is not an unprimeable number, because it can be changed into a prime (61464631) 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, 287110 + ... + 287323.

It is an arithmetic number, because the mean of its divisors is an integer number (15509718).

Almost surely, 2^61464331 is an apocalyptic number.

61464331 is a deficient number, since it is larger than the sum of its proper divisors (574541).

61464331 is a wasteful number, since it uses less digits than its factorization.

61464331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 574540.

The product of its digits is 5184, while the sum is 28.

The square root of 61464331 is about 7839.9190684598. The cubic root of 61464331 is about 394.6460130446.

The spelling of 61464331 in words is "sixty-one million, four hundred sixty-four thousand, three hundred thirty-one".