61442150 has 48 divisors (see below), whose sum is σ = 142490880. Its totient is φ = 19149600.

The previous prime is 61442137. The next prime is 61442159. The reversal of 61442150 is 5124416.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61442159) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4130 + ... + 11829.

It is an arithmetic number, because the mean of its divisors is an integer number (2968560).

Almost surely, 2^61442150 is an apocalyptic number.

61442150 is an abundant number, since it is smaller than the sum of its proper divisors (81048730).

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

61442150 is a wasteful number, since it uses less digits than its factorization.

61442150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15989 (or 15984 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 61442150 is about 7838.5043216165. The cubic root of 61442150 is about 394.5985345787.

Adding to 61442150 its reverse (5124416), we get a palindrome (66566566).

The spelling of 61442150 in words is "sixty-one million, four hundred forty-two thousand, one hundred fifty".