1201466251 has 4 divisors (see below), whose sum is σ = 1215941832. Its totient is φ = 1186990672.

The previous prime is 1201466239. The next prime is 1201466261. The reversal of 1201466251 is 1526641021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1201466251 - 2¹⁵ = 1201433483 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1201466221) 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, 7237666 + ... + 7237831.

It is an arithmetic number, because the mean of its divisors is an integer number (303985458).

Almost surely, 2^1201466251 is an apocalyptic number.

1201466251 is a deficient number, since it is larger than the sum of its proper divisors (14475581).

1201466251 is an equidigital number, since it uses as much as digits as its factorization.

1201466251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14475580.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 1201466251 is about 34662.1732007674. The cubic root of 1201466251 is about 1063.0912052961.

The spelling of 1201466251 in words is "one billion, two hundred one million, four hundred sixty-six thousand, two hundred fifty-one".