61201547 has 16 divisors (see below), whose sum is σ = 70997472. Its totient is φ = 52139520.

The previous prime is 61201541. The next prime is 61201549. The reversal of 61201547 is 74510216.

It is a cyclic number.

It is not a de Polignac number, because 61201547 - 2⁴ = 61201531 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61201541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54233 + ... + 55349.

It is an arithmetic number, because the mean of its divisors is an integer number (4437342).

Almost surely, 2^61201547 is an apocalyptic number.

61201547 is a deficient number, since it is larger than the sum of its proper divisors (9795925).

61201547 is a wasteful number, since it uses less digits than its factorization.

61201547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1438.

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 61201547 is about 7823.1417601882. The cubic root of 61201547 is about 394.0827877087.

It can be divided in two parts, 6120 and 1547, that added together give a palindrome (7667).

The spelling of 61201547 in words is "sixty-one million, two hundred one thousand, five hundred forty-seven".