61701145 has 8 divisors (see below), whose sum is σ = 80772480. Its totient is φ = 44873520.

The previous prime is 61701139. The next prime is 61701149. The reversal of 61701145 is 54110716.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 61701145 - 2¹¹ = 61699097 is a prime.

It is a super-2 number, since 2×61701145² = 7614062588622050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (61701149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 560865 + ... + 560974.

It is an arithmetic number, because the mean of its divisors is an integer number (10096560).

Almost surely, 2^61701145 is an apocalyptic number.

It is an amenable number.

61701145 is a deficient number, since it is larger than the sum of its proper divisors (19071335).

61701145 is a wasteful number, since it uses less digits than its factorization.

61701145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1121855.

The product of its (nonzero) digits is 840, while the sum is 25.

The square root of 61701145 is about 7855.0076384431. The cubic root of 61701145 is about 395.1522032686.

The spelling of 61701145 in words is "sixty-one million, seven hundred one thousand, one hundred forty-five".