61499801 has 8 divisors (see below), whose sum is σ = 67845600. Its totient is φ = 55279840.

The previous prime is 61499797. The next prime is 61499803. The reversal of 61499801 is 10899416.

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 61499801 - 2² = 61499797 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61499803) 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, 30431 + ... + 32388.

It is an arithmetic number, because the mean of its divisors is an integer number (8480700).

Almost surely, 2^61499801 is an apocalyptic number.

It is an amenable number.

61499801 is a deficient number, since it is larger than the sum of its proper divisors (6345799).

61499801 is a wasteful number, since it uses less digits than its factorization.

61499801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62919.

The product of its (nonzero) digits is 15552, while the sum is 38.

The square root of 61499801 is about 7842.1808828922. The cubic root of 61499801 is about 394.7219129041.

The spelling of 61499801 in words is "sixty-one million, four hundred ninety-nine thousand, eight hundred one".