61453542 has 16 divisors (see below), whose sum is σ = 123805872. Its totient is φ = 20334720.

The previous prime is 61453537. The next prime is 61453549. The reversal of 61453542 is 24535416.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61453549) 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, 36559 + ... + 38202.

It is an arithmetic number, because the mean of its divisors is an integer number (7737867).

Almost surely, 2^61453542 is an apocalyptic number.

61453542 is an abundant number, since it is smaller than the sum of its proper divisors (62352330).

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

61453542 is a wasteful number, since it uses less digits than its factorization.

61453542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74903.

The product of its digits is 14400, while the sum is 30.

The square root of 61453542 is about 7839.2309571794. The cubic root of 61453542 is about 394.6229205999.

Adding to 61453542 its reverse (24535416), we get a palindrome (85988958).

The spelling of 61453542 in words is "sixty-one million, four hundred fifty-three thousand, five hundred forty-two".