61534 has 8 divisors (see below), whose sum is σ = 100728. Its totient is φ = 27960.

The previous prime is 61519. The next prime is 61543. The reversal of 61534 is 43516.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1377 + ... + 1420.

It is an arithmetic number, because the mean of its divisors is an integer number (12591).

2⁶¹⁵³⁴ is an apocalyptic number.

61534 is a deficient number, since it is larger than the sum of its proper divisors (39194).

61534 is a wasteful number, since it uses less digits than its factorization.

61534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2810.

The product of its digits is 360, while the sum is 19.

The square root of 61534 is about 248.0604764972. The cubic root of 61534 is about 39.4795065408.

It can be divided in two parts, 615 and 34, that multiplied together give a triangular number (20910 = T₂₀₄).

The spelling of 61534 in words is "sixty-one thousand, five hundred thirty-four".