61416145 has 16 divisors (see below), whose sum is σ = 84389760. Its totient is φ = 42033024.

The previous prime is 61416139. The next prime is 61416193. The reversal of 61416145 is 54161416.

It is a cyclic number.

It is not a de Polignac number, because 61416145 - 2²¹ = 59318993 is a prime.

It is a super-2 number, since 2×61416145² = 7543885733322050, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21141 + ... + 23869.

It is an arithmetic number, because the mean of its divisors is an integer number (5274360).

Almost surely, 2^61416145 is an apocalyptic number.

It is an amenable number.

61416145 is a deficient number, since it is larger than the sum of its proper divisors (22973615).

61416145 is a wasteful number, since it uses less digits than its factorization.

61416145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3384.

The product of its digits is 2880, while the sum is 28.

The square root of 61416145 is about 7836.8453474597. The cubic root of 61416145 is about 394.5428562811.

The spelling of 61416145 in words is "sixty-one million, four hundred sixteen thousand, one hundred forty-five".