61494001 has 4 divisors (see below), whose sum is σ = 62802432. Its totient is φ = 60185572.

The previous prime is 61493969. The next prime is 61494031. The reversal of 61494001 is 10049416.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 61494001 - 2⁵ = 61493969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61494031) 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, 654145 + ... + 654238.

It is an arithmetic number, because the mean of its divisors is an integer number (15700608).

Almost surely, 2^61494001 is an apocalyptic number.

It is an amenable number.

61494001 is a deficient number, since it is larger than the sum of its proper divisors (1308431).

61494001 is a wasteful number, since it uses less digits than its factorization.

61494001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1308430.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 61494001 is about 7841.8110790812. The cubic root of 61494001 is about 394.7095038717.

The spelling of 61494001 in words is "sixty-one million, four hundred ninety-four thousand, one".