61514771 has 4 divisors (see below), whose sum is σ = 63636000. Its totient is φ = 59393544.

The previous prime is 61514767. The next prime is 61514807. The reversal of 61514771 is 17741516.

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 61514771 - 2² = 61514767 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61514701) 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, 1060571 + ... + 1060628.

It is an arithmetic number, because the mean of its divisors is an integer number (15909000).

Almost surely, 2^61514771 is an apocalyptic number.

61514771 is a deficient number, since it is larger than the sum of its proper divisors (2121229).

61514771 is a wasteful number, since it uses less digits than its factorization.

61514771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2121228.

The product of its digits is 5880, while the sum is 32.

The square root of 61514771 is about 7843.1352787007. The cubic root of 61514771 is about 394.7539374394.

The spelling of 61514771 in words is "sixty-one million, five hundred fourteen thousand, seven hundred seventy-one".