1201512379 has 2 divisors, whose sum is σ = 1201512380. Its totient is φ = 1201512378.

The previous prime is 1201512313. The next prime is 1201512397. The reversal of 1201512379 is 9732151021.

Together with next prime (1201512397) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1201512379 - 2⁷ = 1201512251 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1201512379.

It is not a weakly prime, because it can be changed into another prime (1201552379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600756189 + 600756190.

It is an arithmetic number, because the mean of its divisors is an integer number (600756190).

Almost surely, 2^1201512379 is an apocalyptic number.

1201512379 is a deficient number, since it is larger than the sum of its proper divisors (1).

1201512379 is an equidigital number, since it uses as much as digits as its factorization.

1201512379 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3780, while the sum is 31.

The square root of 1201512379 is about 34662.8385883211. The cubic root of 1201512379 is about 1063.1048102402.

The spelling of 1201512379 in words is "one billion, two hundred one million, five hundred twelve thousand, three hundred seventy-nine".