61014145 has 8 divisors (see below), whose sum is σ = 73294056. Its totient is φ = 48759936.

The previous prime is 61014143. The next prime is 61014181. The reversal of 61014145 is 54141016.

It can be written as a sum of positive squares in 4 ways, for example, as 17572864 + 43441281 = 4192^2 + 6591^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 61014145 - 2¹ = 61014143 is a prime.

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

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61014143) 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, 742 + ... + 11071.

It is an arithmetic number, because the mean of its divisors is an integer number (9161757).

Almost surely, 2^61014145 is an apocalyptic number.

It is an amenable number.

61014145 is a deficient number, since it is larger than the sum of its proper divisors (12279911).

61014145 is a wasteful number, since it uses less digits than its factorization.

61014145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12851.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 61014145 is about 7811.1551642507. The cubic root of 61014145 is about 393.6801431459.

The spelling of 61014145 in words is "sixty-one million, fourteen thousand, one hundred forty-five".