61501459 has 4 divisors (see below), whose sum is σ = 61536880. Its totient is φ = 61466040.

The previous prime is 61501457. The next prime is 61501463. The reversal of 61501459 is 95410516.

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 61501459 - 2¹ = 61501457 is a prime.

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 61501459.

It is not an unprimeable number, because it can be changed into a prime (61501457) 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, 14964 + ... + 18625.

It is an arithmetic number, because the mean of its divisors is an integer number (15384220).

Almost surely, 2^61501459 is an apocalyptic number.

61501459 is a deficient number, since it is larger than the sum of its proper divisors (35421).

61501459 is a wasteful number, since it uses less digits than its factorization.

61501459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35420.

The product of its (nonzero) digits is 5400, while the sum is 31.

The square root of 61501459 is about 7842.2865925698. The cubic root of 61501459 is about 394.7254600324.

The spelling of 61501459 in words is "sixty-one million, five hundred one thousand, four hundred fifty-nine".