1323157070 has 32 divisors (see below), whose sum is σ = 2396096640. Its totient is φ = 526072320.

The previous prime is 1323157063. The next prime is 1323157091. The reversal of 1323157070 is 707513231.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1865876 + ... + 1866584.

It is an arithmetic number, because the mean of its divisors is an integer number (74878020).

Almost surely, 2^1323157070 is an apocalyptic number.

1323157070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1323157070 is a deficient number, since it is larger than the sum of its proper divisors (1072939570).

1323157070 is a wasteful number, since it uses less digits than its factorization.

1323157070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1580.

The product of its (nonzero) digits is 4410, while the sum is 29.

The square root of 1323157070 is about 36375.2260474076. The cubic root of 1323157070 is about 1097.8351555166.

The spelling of 1323157070 in words is "one billion, three hundred twenty-three million, one hundred fifty-seven thousand, seventy".