61321701 has 16 divisors (see below), whose sum is σ = 93576704. Its totient is φ = 34990704.

The previous prime is 61321661. The next prime is 61321717. The reversal of 61321701 is 10712316.

It is not a de Polignac number, because 61321701 - 2¹⁵ = 61288933 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61321781) 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, 16890 + ... + 20196.

It is an arithmetic number, because the mean of its divisors is an integer number (5848544).

Almost surely, 2^61321701 is an apocalyptic number.

It is an amenable number.

61321701 is a deficient number, since it is larger than the sum of its proper divisors (32255003).

61321701 is a wasteful number, since it uses less digits than its factorization.

61321701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4200.

The product of its (nonzero) digits is 252, while the sum is 21.

The square root of 61321701 is about 7830.8173902856. The cubic root of 61321701 is about 394.3405136012.

The spelling of 61321701 in words is "sixty-one million, three hundred twenty-one thousand, seven hundred one".