1201520319 has 8 divisors (see below), whose sum is σ = 1639283712. Its totient is φ = 782385240.

The previous prime is 1201520317. The next prime is 1201520357. The reversal of 1201520319 is 9130251021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1201520319 - 2¹ = 1201520317 is a prime.

It is a super-2 number, since 2×1201520319² = 2887302153939723522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201520317) 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, 4656927 + ... + 4657184.

It is an arithmetic number, because the mean of its divisors is an integer number (204910464).

Almost surely, 2^1201520319 is an apocalyptic number.

1201520319 is a deficient number, since it is larger than the sum of its proper divisors (437763393).

1201520319 is an equidigital number, since it uses as much as digits as its factorization.

1201520319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9314157.

The product of its (nonzero) digits is 540, while the sum is 24.

The square root of 1201520319 is about 34662.9531200098. The cubic root of 1201520319 is about 1063.1071520204.

The spelling of 1201520319 in words is "one billion, two hundred one million, five hundred twenty thousand, three hundred nineteen".