721056152 has 8 divisors (see below), whose sum is σ = 1351980300. Its totient is φ = 360528072.

The previous prime is 721056103. The next prime is 721056163. The reversal of 721056152 is 251650127.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45066002 + ... + 45066017.

Almost surely, 2^721056152 is an apocalyptic number.

It is an amenable number.

721056152 is a deficient number, since it is larger than the sum of its proper divisors (630924148).

721056152 is a wasteful number, since it uses less digits than its factorization.

721056152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90132025 (or 90132021 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 29.

The square root of 721056152 is about 26852.4887487175. The cubic root of 721056152 is about 896.7189800711.

The spelling of 721056152 in words is "seven hundred twenty-one million, fifty-six thousand, one hundred fifty-two".