61146623 has 4 divisors (see below), whose sum is σ = 61331688. Its totient is φ = 60961560.

The previous prime is 61146593. The next prime is 61146653. The reversal of 61146623 is 32664116.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (61146593) and next prime (61146653).

It is a cyclic number.

It is not a de Polignac number, because 61146623 - 2¹⁸ = 60884479 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61146653) 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, 92036 + ... + 92697.

It is an arithmetic number, because the mean of its divisors is an integer number (15332922).

Almost surely, 2^61146623 is an apocalyptic number.

61146623 is a deficient number, since it is larger than the sum of its proper divisors (185065).

61146623 is a wasteful number, since it uses less digits than its factorization.

61146623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185064.

The product of its digits is 5184, while the sum is 29.

The square root of 61146623 is about 7819.6306178745. The cubic root of 61146623 is about 393.9648654112.

The spelling of 61146623 in words is "sixty-one million, one hundred forty-six thousand, six hundred twenty-three".