61466138 has 16 divisors (see below), whose sum is σ = 95662080. Its totient is φ = 29585136.

The previous prime is 61466137. The next prime is 61466183. The reversal of 61466138 is 83166416.

It is a super-2 number, since 2×61466138² = 7556172241270088, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 61466098 and 61466107.

It is not an unprimeable number, because it can be changed into a prime (61466137) 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, 20831 + ... + 23597.

It is an arithmetic number, because the mean of its divisors is an integer number (5978880).

Almost surely, 2^61466138 is an apocalyptic number.

61466138 is a deficient number, since it is larger than the sum of its proper divisors (34195942).

61466138 is a wasteful number, since it uses less digits than its factorization.

61466138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3181.

The product of its digits is 20736, while the sum is 35.

The square root of 61466138 is about 7840.0343111494. The cubic root of 61466138 is about 394.6498804277.

The spelling of 61466138 in words is "sixty-one million, four hundred sixty-six thousand, one hundred thirty-eight".