2545146431 has 4 divisors (see below), whose sum is σ = 2571385152. Its totient is φ = 2518907712.

The previous prime is 2545146413. The next prime is 2545146437. The reversal of 2545146431 is 1346415452.

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

It is a cyclic number.

It is not a de Polignac number, because 2545146431 - 2²⁶ = 2478037567 is a prime.

It is a super-2 number, since 2×2545146431² = 12955540710464075522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2545146391 and 2545146400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2545146437) 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, 13119215 + ... + 13119408.

It is an arithmetic number, because the mean of its divisors is an integer number (642846288).

Almost surely, 2^2545146431 is an apocalyptic number.

2545146431 is a deficient number, since it is larger than the sum of its proper divisors (26238721).

2545146431 is an equidigital number, since it uses as much as digits as its factorization.

2545146431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26238720.

The product of its digits is 57600, while the sum is 35.

The square root of 2545146431 is about 50449.4443081388. Note that the first 3 decimals coincide. The cubic root of 2545146431 is about 1365.3298689768.

The spelling of 2545146431 in words is "two billion, five hundred forty-five million, one hundred forty-six thousand, four hundred thirty-one".