61141901 has 4 divisors (see below), whose sum is σ = 61232892. Its totient is φ = 61050912.

The previous prime is 61141897. The next prime is 61141907. The reversal of 61141901 is 10914116.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 28366276 + 32775625 = 5326^2 + 5725^2 .

It is a cyclic number.

It is not a de Polignac number, because 61141901 - 2² = 61141897 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 (61141907) 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, 44480 + ... + 45833.

It is an arithmetic number, because the mean of its divisors is an integer number (15308223).

Almost surely, 2^61141901 is an apocalyptic number.

It is an amenable number.

61141901 is a deficient number, since it is larger than the sum of its proper divisors (90991).

61141901 is an equidigital number, since it uses as much as digits as its factorization.

61141901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90990.

The product of its (nonzero) digits is 216, while the sum is 23.

The square root of 61141901 is about 7819.3286796246. The cubic root of 61141901 is about 393.9547239409.

The spelling of 61141901 in words is "sixty-one million, one hundred forty-one thousand, nine hundred one".