1372534057 has 4 divisors (see below), whose sum is σ = 1398430980. Its totient is φ = 1346637136.

The previous prime is 1372533949. The next prime is 1372534067. The reversal of 1372534057 is 7504352731.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 752075776 + 620458281 = 27424^2 + 24909^2 .

It is a cyclic number.

It is not a de Polignac number, because 1372534057 - 2¹⁵ = 1372501289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1372534067) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12948382 + ... + 12948487.

It is an arithmetic number, because the mean of its divisors is an integer number (349607745).

Almost surely, 2^1372534057 is an apocalyptic number.

It is an amenable number.

1372534057 is a deficient number, since it is larger than the sum of its proper divisors (25896923).

1372534057 is an equidigital number, since it uses as much as digits as its factorization.

1372534057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25896922.

The product of its (nonzero) digits is 88200, while the sum is 37.

The square root of 1372534057 is about 37047.7267453753. The cubic root of 1372534057 is about 1111.3248949949.

Adding to 1372534057 its reverse (7504352731), we get a palindrome (8876886788).

The spelling of 1372534057 in words is "one billion, three hundred seventy-two million, five hundred thirty-four thousand, fifty-seven".