61451601 has 8 divisors (see below), whose sum is σ = 83841120. Its totient is φ = 40014912.

The previous prime is 61451573. The next prime is 61451629. The reversal of 61451601 is 10615416.

It is an interprime number because it is at equal distance from previous prime (61451573) and next prime (61451629).

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

It is not a de Polignac number, because 61451601 - 2¹⁴ = 61435217 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (61461601) 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, 238056 + ... + 238313.

It is an arithmetic number, because the mean of its divisors is an integer number (10480140).

Almost surely, 2^61451601 is an apocalyptic number.

It is an amenable number.

61451601 is a deficient number, since it is larger than the sum of its proper divisors (22389519).

61451601 is a wasteful number, since it uses less digits than its factorization.

61451601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 476415.

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 61451601 is about 7839.1071557927. The cubic root of 61451601 is about 394.6187658562.

The spelling of 61451601 in words is "sixty-one million, four hundred fifty-one thousand, six hundred one".