61496140 has 24 divisors (see below), whose sum is σ = 136739232. Its totient is φ = 23151360.

The previous prime is 61496131. The next prime is 61496143. The reversal of 61496140 is 4169416.

It is not an unprimeable number, because it can be changed into a prime (61496143) 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, 90096 + ... + 90775.

It is an arithmetic number, because the mean of its divisors is an integer number (5697468).

Almost surely, 2^61496140 is an apocalyptic number.

It is an amenable number.

61496140 is an abundant number, since it is smaller than the sum of its proper divisors (75243092).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61496140 is a wasteful number, since it uses less digits than its factorization.

61496140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180897 (or 180895 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 61496140 is about 7841.9474622061. The cubic root of 61496140 is about 394.7140803281.

The spelling of 61496140 in words is "sixty-one million, four hundred ninety-six thousand, one hundred forty".