61201049 has 24 divisors (see below), whose sum is σ = 79337160. Its totient is φ = 46738944.

The previous prime is 61201043. The next prime is 61201073. The reversal of 61201049 is 94010216.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 12201049 + 49000000 = 3493^2 + 7000^2 .

It is not a de Polignac number, because 61201049 - 2¹² = 61196953 is a prime.

It is a super-3 number, since 3×61201049³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61201043) 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, 16817 + ... + 20129.

It is an arithmetic number, because the mean of its divisors is an integer number (3305715).

Almost surely, 2^61201049 is an apocalyptic number.

It is an amenable number.

61201049 is a deficient number, since it is larger than the sum of its proper divisors (18136111).

61201049 is a wasteful number, since it uses less digits than its factorization.

61201049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3369 (or 3362 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 61201049 is about 7823.1099314787. The cubic root of 61201049 is about 394.0817188154.

The spelling of 61201049 in words is "sixty-one million, two hundred one thousand, forty-nine".