1274540971 has 8 divisors (see below), whose sum is σ = 1419992064. Its totient is φ = 1134020520.

The previous prime is 1274540921. The next prime is 1274541001. The reversal of 1274540971 is 1790454721.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1274540971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1274540921) 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, 1232115 + ... + 1233148.

It is an arithmetic number, because the mean of its divisors is an integer number (177499008).

Almost surely, 2^1274540971 is an apocalyptic number.

1274540971 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1274540971 is a deficient number, since it is larger than the sum of its proper divisors (145451093).

1274540971 is a wasteful number, since it uses less digits than its factorization.

1274540971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2465321.

The product of its (nonzero) digits is 70560, while the sum is 40.

The square root of 1274540971 is about 35700.7138724144. The cubic root of 1274540971 is about 1084.2212966110.

It can be divided in two parts, 1274 and 540971, that added together give a palindrome (542245).

The spelling of 1274540971 in words is "one billion, two hundred seventy-four million, five hundred forty thousand, nine hundred seventy-one".