61364529 has 18 divisors (see below), whose sum is σ = 92666210. Its totient is φ = 39127968.

The previous prime is 61364507. The next prime is 61364533. The reversal of 61364529 is 92546316.

It is a happy number.

61364529 is a `hidden beast` number, since 6 + 1 + 3 + 645 + 2 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 55532304 + 5832225 = 7452^2 + 2415^2 .

It is not a de Polignac number, because 61364529 - 2¹⁵ = 61331761 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 61364493 and 61364502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61364579) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1684 + ... + 11205.

Almost surely, 2^61364529 is an apocalyptic number.

61364529 is a gapful number since it is divisible by the number (69) formed by its first and last digit.

It is an amenable number.

61364529 is a deficient number, since it is larger than the sum of its proper divisors (31301681).

61364529 is a wasteful number, since it uses less digits than its factorization.

61364529 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12941 (or 12915 counting only the distinct ones).

The product of its digits is 38880, while the sum is 36.

The square root of 61364529 is about 7833.5514934160. The cubic root of 61364529 is about 394.4322966892.

The spelling of 61364529 in words is "sixty-one million, three hundred sixty-four thousand, five hundred twenty-nine".