61651023 has 8 divisors (see below), whose sum is σ = 93944448. Its totient is φ = 35229144.

The previous prime is 61651021. The next prime is 61651039. The reversal of 61651023 is 32015616.

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

It is not a de Polignac number, because 61651023 - 2¹ = 61651021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 61650984 and 61651002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61651021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1467861 + ... + 1467902.

It is an arithmetic number, because the mean of its divisors is an integer number (11743056).

Almost surely, 2^61651023 is an apocalyptic number.

61651023 is a deficient number, since it is larger than the sum of its proper divisors (32293425).

61651023 is a wasteful number, since it uses less digits than its factorization.

61651023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2935773.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 61651023 is about 7851.8165414126. The cubic root of 61651023 is about 395.0451756268.

Adding to 61651023 its reverse (32015616), we get a palindrome (93666639).

The spelling of 61651023 in words is "sixty-one million, six hundred fifty-one thousand, twenty-three".