61407146 has 8 divisors (see below), whose sum is σ = 92620164. Its totient is φ = 30533760.

The previous prime is 61407133. The next prime is 61407149. The reversal of 61407146 is 64170416.

It can be written as a sum of positive squares in 2 ways, for example, as 45495025 + 15912121 = 6745^2 + 3989^2 .

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

It is not an unprimeable number, because it can be changed into a prime (61407149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84455 + ... + 85178.

Almost surely, 2^61407146 is an apocalyptic number.

61407146 is a deficient number, since it is larger than the sum of its proper divisors (31213018).

61407146 is a wasteful number, since it uses less digits than its factorization.

61407146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169816.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 61407146 is about 7836.2711795854. The cubic root of 61407146 is about 394.5235852106.

The spelling of 61407146 in words is "sixty-one million, four hundred seven thousand, one hundred forty-six".