1272146074 has 16 divisors (see below), whose sum is σ = 2090140200. Its totient is φ = 578013184.

The previous prime is 1272146041. The next prime is 1272146081. The reversal of 1272146074 is 4706412721.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1026753849 + 245392225 = 32043^2 + 15665^2 .

It is a super-2 number, since 2×1272146074² = 3236711267187226952, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 644119 + ... + 646090.

Almost surely, 2^1272146074 is an apocalyptic number.

1272146074 is a deficient number, since it is larger than the sum of its proper divisors (817994126).

1272146074 is a wasteful number, since it uses less digits than its factorization.

1272146074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1290257.

The product of its (nonzero) digits is 18816, while the sum is 34.

The square root of 1272146074 is about 35667.1567972554. The cubic root of 1272146074 is about 1083.5417770953.

Adding to 1272146074 its reverse (4706412721), we get a palindrome (5978558795).

The spelling of 1272146074 in words is "one billion, two hundred seventy-two million, one hundred forty-six thousand, seventy-four".