715621147 has 4 divisors (see below), whose sum is σ = 715674960. Its totient is φ = 715567336.

The previous prime is 715621129. The next prime is 715621177. The reversal of 715621147 is 741126517.

715621147 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 741126517 = 31 ⋅23907307.

It is a cyclic number.

It is not a de Polignac number, because 715621147 - 2¹⁹ = 715096859 is a prime.

It is a super-2 number, since 2×715621147² = 1024227252067191218, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (715621177) 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, 9129 + ... + 38917.

It is an arithmetic number, because the mean of its divisors is an integer number (178918740).

Almost surely, 2^715621147 is an apocalyptic number.

715621147 is a deficient number, since it is larger than the sum of its proper divisors (53813).

715621147 is a wasteful number, since it uses less digits than its factorization.

715621147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53812.

The product of its digits is 11760, while the sum is 34.

The square root of 715621147 is about 26751.0961831473. The cubic root of 715621147 is about 894.4602706932.

The spelling of 715621147 in words is "seven hundred fifteen million, six hundred twenty-one thousand, one hundred forty-seven".