1270722061 has 16 divisors (see below), whose sum is σ = 1489154688. Its totient is φ = 1061568000.

The previous prime is 1270722007. The next prime is 1270722073. The reversal of 1270722061 is 1602270721.

It is a cyclic number.

It is not a de Polignac number, because 1270722061 - 2²⁹ = 733851149 is a prime.

It is a super-2 number, since 2×1270722061² = 3229469112624175442, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1270722091) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 444286 + ... + 447136.

It is an arithmetic number, because the mean of its divisors is an integer number (93072168).

Almost surely, 2^1270722061 is an apocalyptic number.

It is an amenable number.

1270722061 is a deficient number, since it is larger than the sum of its proper divisors (218432627).

1270722061 is a wasteful number, since it uses less digits than its factorization.

1270722061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4452.

The product of its (nonzero) digits is 2352, while the sum is 28.

The square root of 1270722061 is about 35647.1886829803. The cubic root of 1270722061 is about 1083.1373283474.

Adding to 1270722061 its reverse (1602270721), we get a palindrome (2872992782).

The spelling of 1270722061 in words is "one billion, two hundred seventy million, seven hundred twenty-two thousand, sixty-one".