1372666534 has 4 divisors (see below), whose sum is σ = 2058999804. Its totient is φ = 686333266.

The previous prime is 1372666531. The next prime is 1372666573. The reversal of 1372666534 is 4356662731.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4356662731 = 1741 ⋅2502391.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1372666531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 343166632 + ... + 343166635.

It is an arithmetic number, because the mean of its divisors is an integer number (514749951).

Almost surely, 2^1372666534 is an apocalyptic number.

1372666534 is a deficient number, since it is larger than the sum of its proper divisors (686333270).

1372666534 is an equidigital number, since it uses as much as digits as its factorization.

1372666534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 686333269.

The product of its digits is 544320, while the sum is 43.

The square root of 1372666534 is about 37049.5146257006. The cubic root of 1372666534 is about 1111.3606488744.

The spelling of 1372666534 in words is "one billion, three hundred seventy-two million, six hundred sixty-six thousand, five hundred thirty-four".