245132437831 has 4 divisors (see below), whose sum is σ = 245160522664. Its totient is φ = 245104353000.

The previous prime is 245132437747. The next prime is 245132437853. The reversal of 245132437831 is 138734231542.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 138734231542 = 2 ⋅69367115771.

It is a cyclic number.

It is not a de Polignac number, because 245132437831 - 2³⁷ = 107693484359 is a prime.

It is a super-2 number, since 2×245132437831² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245132407831) 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, 14029320 + ... + 14046781.

It is an arithmetic number, because the mean of its divisors is an integer number (61290130666).

Almost surely, 2^245132437831 is an apocalyptic number.

245132437831 is a deficient number, since it is larger than the sum of its proper divisors (28084833).

245132437831 is an equidigital number, since it uses as much as digits as its factorization.

245132437831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28084832.

The product of its digits is 483840, while the sum is 43.

The spelling of 245132437831 in words is "two hundred forty-five billion, one hundred thirty-two million, four hundred thirty-seven thousand, eight hundred thirty-one".