Search a number
-
+
61125541 = 527911579
BaseRepresentation
bin1110100100101…
…1001110100101
311021000111110221
43221023032211
5111122004131
610022044341
71341362401
oct351131645
9137014427
1061125541
113155a584
12185796b1
13c882379
148192101
155576411
hex3a4b3a5

61125541 has 4 divisors (see below), whose sum is σ = 61142400. Its totient is φ = 61108684.

The previous prime is 61125511. The next prime is 61125563. The reversal of 61125541 is 14552116.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 61125541 - 213 = 61117349 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 (61125511) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 511 + ... + 11068.

It is an arithmetic number, because the mean of its divisors is an integer number (15285600).

Almost surely, 261125541 is an apocalyptic number.

It is an amenable number.

61125541 is a deficient number, since it is larger than the sum of its proper divisors (16859).

61125541 is a wasteful number, since it uses less digits than its factorization.

61125541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16858.

The product of its digits is 1200, while the sum is 25.

The square root of 61125541 is about 7818.2824840242. The cubic root of 61125541 is about 393.9195834229.

Adding to 61125541 its reverse (14552116), we get a palindrome (75677657).

The spelling of 61125541 in words is "sixty-one million, one hundred twenty-five thousand, five hundred forty-one".

Divisors: 1 5279 11579 61125541