1496057721 has 8 divisors (see below), whose sum is σ = 1996069824. Its totient is φ = 996708720.

The previous prime is 1496057699. The next prime is 1496057723. The reversal of 1496057721 is 1277506941.

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 1496057721 - 2⁶ = 1496057657 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1496057723) 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, 160486 + ... + 169551.

It is an arithmetic number, because the mean of its divisors is an integer number (249508728).

Almost surely, 2^1496057721 is an apocalyptic number.

It is an amenable number.

1496057721 is a deficient number, since it is larger than the sum of its proper divisors (500012103).

1496057721 is a wasteful number, since it uses less digits than its factorization.

1496057721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331551.

The product of its (nonzero) digits is 105840, while the sum is 42.

The square root of 1496057721 is about 38678.9053748939. The cubic root of 1496057721 is about 1143.7105220690.

The spelling of 1496057721 in words is "one billion, four hundred ninety-six million, fifty-seven thousand, seven hundred twenty-one".