61514331 has 4 divisors (see below), whose sum is σ = 82019112. Its totient is φ = 41009552.

The previous prime is 61514317. The next prime is 61514339. The reversal of 61514331 is 13341516.

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 61514331 - 2⁹ = 61513819 is a prime.

It is a super-2 number, since 2×61514331² = 7568025836755122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (61514339) 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, 10252386 + ... + 10252391.

It is an arithmetic number, because the mean of its divisors is an integer number (20504778).

Almost surely, 2^61514331 is an apocalyptic number.

61514331 is a deficient number, since it is larger than the sum of its proper divisors (20504781).

61514331 is a wasteful number, since it uses less digits than its factorization.

61514331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20504780.

The product of its digits is 1080, while the sum is 24.

The square root of 61514331 is about 7843.1072286435. The cubic root of 61514331 is about 394.7529962446.

Adding to 61514331 its reverse (13341516), we get a palindrome (74855847).

The spelling of 61514331 in words is "sixty-one million, five hundred fourteen thousand, three hundred thirty-one".