1273652061 has 32 divisors (see below), whose sum is σ = 1958100480. Its totient is φ = 728280000.

The previous prime is 1273652059. The next prime is 1273652069. The reversal of 1273652061 is 1602563721.

It is not a de Polignac number, because 1273652061 - 2¹ = 1273652059 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1273652069) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 153331 + ... + 161423.

It is an arithmetic number, because the mean of its divisors is an integer number (61190640).

Almost surely, 2^1273652061 is an apocalyptic number.

1273652061 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1273652061 is a deficient number, since it is larger than the sum of its proper divisors (684448419).

1273652061 is a wasteful number, since it uses less digits than its factorization.

1273652061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8377.

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 1273652061 is about 35688.2622300386. The cubic root of 1273652061 is about 1083.9691798833.

The spelling of 1273652061 in words is "one billion, two hundred seventy-three million, six hundred fifty-two thousand, sixty-one".