61097541 has 16 divisors (see below), whose sum is σ = 86943744. Its totient is φ = 38029824.

The previous prime is 61097537. The next prime is 61097551. The reversal of 61097541 is 14579016.

It is not a de Polignac number, because 61097541 - 2² = 61097537 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61097551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1761 + ... + 11193.

It is an arithmetic number, because the mean of its divisors is an integer number (5433984).

Almost surely, 2^61097541 is an apocalyptic number.

It is an amenable number.

61097541 is a deficient number, since it is larger than the sum of its proper divisors (25846203).

61097541 is a wasteful number, since it uses less digits than its factorization.

61097541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9580.

The product of its (nonzero) digits is 7560, while the sum is 33.

The square root of 61097541 is about 7816.4916042941. The cubic root of 61097541 is about 393.8594261754.

The spelling of 61097541 in words is "sixty-one million, ninety-seven thousand, five hundred forty-one".