61954459 has 12 divisors (see below), whose sum is σ = 74730864. Its totient is φ = 50306832.

The previous prime is 61954457. The next prime is 61954481. The reversal of 61954459 is 95445916.

It is not a de Polignac number, because 61954459 - 2¹ = 61954457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61954457) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9732 + ... + 14785.

It is an arithmetic number, because the mean of its divisors is an integer number (6227572).

Almost surely, 2^61954459 is an apocalyptic number.

61954459 is a deficient number, since it is larger than the sum of its proper divisors (12776405).

61954459 is a wasteful number, since it uses less digits than its factorization.

61954459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24562 (or 24543 counting only the distinct ones).

The product of its digits is 194400, while the sum is 43.

The square root of 61954459 is about 7871.1154863844. The cubic root of 61954459 is about 395.6922305960.

The spelling of 61954459 in words is "sixty-one million, nine hundred fifty-four thousand, four hundred fifty-nine".