61400146 has 8 divisors (see below), whose sum is σ = 92196864. Its totient is φ = 30667860.

The previous prime is 61400137. The next prime is 61400147. The reversal of 61400146 is 64100416.

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 (61400147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13650 + ... + 17581.

It is an arithmetic number, because the mean of its divisors is an integer number (11524608).

Almost surely, 2^61400146 is an apocalyptic number.

61400146 is a deficient number, since it is larger than the sum of its proper divisors (30796718).

61400146 is a wasteful number, since it uses less digits than its factorization.

61400146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32216.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 61400146 is about 7835.8245258556. The cubic root of 61400146 is about 394.5085936327.

The spelling of 61400146 in words is "sixty-one million, four hundred thousand, one hundred forty-six".