1252734751 has 4 divisors (see below), whose sum is σ = 1253116192. Its totient is φ = 1252353312.

The previous prime is 1252734739. The next prime is 1252734761. The reversal of 1252734751 is 1574372521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1574372521 = 1721 ⋅914801.

It is a cyclic number.

It is not a de Polignac number, because 1252734751 - 2²¹ = 1250637599 is a prime.

It is a super-3 number, since 3×1252734751³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1252734751.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1252734761) 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, 185751 + ... + 192376.

It is an arithmetic number, because the mean of its divisors is an integer number (313279048).

Almost surely, 2^1252734751 is an apocalyptic number.

1252734751 is a deficient number, since it is larger than the sum of its proper divisors (381441).

1252734751 is an equidigital number, since it uses as much as digits as its factorization.

1252734751 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 381440.

The product of its digits is 58800, while the sum is 37.

The square root of 1252734751 is about 35393.9931485556. The cubic root of 1252734751 is about 1078.0023518042.

It can be divided in two parts, 12527 and 34751, that added together give a triangular number (47278 = T₃₀₇).

The spelling of 1252734751 in words is "one billion, two hundred fifty-two million, seven hundred thirty-four thousand, seven hundred fifty-one".