61245541 has 12 divisors (see below), whose sum is σ = 71491680. Its totient is φ = 52314360.

The previous prime is 61245539. The next prime is 61245557. The reversal of 61245541 is 14554216.

It is not a de Polignac number, because 61245541 - 2¹ = 61245539 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61245521) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13230 + ... + 17248.

It is an arithmetic number, because the mean of its divisors is an integer number (5957640).

Almost surely, 2^61245541 is an apocalyptic number.

It is an amenable number.

61245541 is a deficient number, since it is larger than the sum of its proper divisors (10246139).

61245541 is a wasteful number, since it uses less digits than its factorization.

61245541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4344 (or 4337 counting only the distinct ones).

The product of its digits is 4800, while the sum is 28.

The square root of 61245541 is about 7825.9530410040. The cubic root of 61245541 is about 394.1771923245.

Adding to 61245541 its reverse (14554216), we get a palindrome (75799757).

The spelling of 61245541 in words is "sixty-one million, two hundred forty-five thousand, five hundred forty-one".