12701551 has 4 divisors (see below), whose sum is σ = 12742704. Its totient is φ = 12660400.

The previous prime is 12701531. The next prime is 12701569. The reversal of 12701551 is 15510721.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15510721 = 257 ⋅60353.

It is a cyclic number.

It is not a de Polignac number, because 12701551 - 2¹⁵ = 12668783 is a prime.

It is a super-2 number, since 2×12701551² = 322658795611202, which contains 22 as substring.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12701531) 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, 20110 + ... + 20731.

It is an arithmetic number, because the mean of its divisors is an integer number (3185676).

Almost surely, 2^12701551 is an apocalyptic number.

12701551 is a deficient number, since it is larger than the sum of its proper divisors (41153).

12701551 is an equidigital number, since it uses as much as digits as its factorization.

12701551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41152.

The product of its (nonzero) digits is 350, while the sum is 22.

The square root of 12701551 is about 3563.9235401450. The cubic root of 12701551 is about 233.3201527702.

The spelling of 12701551 in words is "twelve million, seven hundred one thousand, five hundred fifty-one".